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Rhinotropis rimulicola, Rhinotropis rusbyi, Rhinotropis subspinosa (S. F. Blake) J. R. Abbott J. Bot. Res. Inst. Texas 5: 134. 2011. J. Richard Abbott

Grissom and Hufford, unpubl.). In Loasaceae, Eucnide and Schismocarpus S. F. Blake, a genus restricted to southern Mexico, are the earliest diverging lineages

Hymenoxys ambigens var. floribunda, Hymenoxys ambigens var. neomexicana (S. F. Blake) Bierner Sida 16: 6. 1994. Mark W. Bierner Common names: Pinaleno Mountains

sun, and - merus, part Synonyms: Viguiera sect. Heliomeris (Nuttall) S. F. Blake Treatment appears in FNA Volume 21. Treatment on page 169. Mentioned on

Limonium carolinianum var. obtusilobum (S. F. Blake) H. E. Ahles Limonium carolinianum var. trichogonum (S. F. Blake) B. Boivin Limonium nashii Limonium nashii

Synonyms: Haplopappus scopulorum (M. E. Jones) S. F. Blake Haplopappus scopulorum var. hirtellus S. F. Blake Hesperodoria scopulorum Treatment appears in

tribeAsteraceae tribe Astereae genusEricameria speciesEricameria gilmanii (S. F. Blake) G. L. Nesom Phytologia 68: 153. 1990. Lowell E. Urbatsch, Loran C. Anderson

tribeAsteraceae tribe Astereae genusChrysothamnus speciesChrysothamnus molestus (S. F. Blake) L. C. Anderson Madroño 17: 222. 1964. Lowell E. Urbatsch, Roland P. Roberts

speciesMicranthemum umbrosum (J. F. Gmelin) S. F. Blake Rhodora 17: 131. 1915. Brian R. Keener Common names: Shade mudflower baby's tears WeedyIllustrated Basionym:

Philadelphia, n. s. 1: 171. 1847. Edward E. Schilling Common names: Showy goldeneye Illustrated Synonyms: Viguiera multiflora (Nuttall) S. F. Blake Treatment

10: 126. 1883 (as Bigelovia) Synonyms: Haplopappus acradenius (Greene) S. F. Blake Treatment appears in FNA Volume 20. Treatment on page 440. Herbage usually

Blennosperma nanum var. nanum, Blennosperma nanum var. robustum (Hooker) S. F. Blake Proc. Biol. Soc. Wash. 39: 144. 1926. John L. Strother IllustratedEndemic

skirrhobasis var. kidderi (S. F. Blake) B. L. Turner Phytologia 56: 94. 1984. Guy L. Nesom Basionym: Aphanostephus kidderi S. F. Blake Contr. Gray Herb. 53:

Gray) S. F. Blake Proc. Amer. Acad. Arts 49: 340. 1913. John L. Strother Basionym: Undefined sect. Pugiopappus A. Gray in War Department [U.S.], Pacif

genusPhoebanthus Show Lower Taxa Phoebanthus grandiflorus, Phoebanthus tenuifolius S. F. Blake Proc. Amer. Acad. Arts 51: 520. 1916. Edward E. Schilling Common names:

68. 1928 Synonyms: Haplopappus bloomeri var. compactus (H. M. Hall) S. F. Blake Haplopappus compactus Treatment appears in FNA Volume 20. Treatment on

California 1: 614. 1876 (as Bigelovia) Synonyms: Haplopappus propinquus S. F. Blake Treatment appears in FNA Volume 20. Treatment on page 55. Mentioned on

sphaerocephalus varietyAcamptopappus sphaerocephalus var. hirtellus S. F. Blake J. Wash. Acad. Sci. 19: 270. 1929. Guy L. Nesom Endemic Treatment appears

Wallroth Armeria labradorica Wallroth Armeria labradorica var. submutica (S. F. Blake) H. F. Lewis Armeria maritima subsp. arctica (Chamisso) Hultén Armeria maritima

rugosum Reichard Eupatorium rugosum var. chlorolepis (B. L. Robinson) S. F. Blake Eupatorium rugosum var. tomentellum Eupatorium urticifolium Treatment

Synonyms: Eleocharis capitata R. Brown Eleocharis caribaea (Rottbøll) S. F. Blake Eleocharis dispar E. J. Hill Treatment appears in FNA Volume 23. Treatment

Florence S. Wagner Common names: Northern adder's-tongue herbe-sans-couture IllustratedEndemic Synonyms: Ophioglossum vulgatum var. pseudopodum (S.F. Blake)

Genève 7: 265. 1836 Synonyms: Gutierrezia dracunculoides (de Candolle) S. F. Blake Xanthocephalum amoenum var. intermedium Shinners Treatment appears in

Tuckermannia Show Lower Taxa Coreopsis gigantea, Coreopsis maritima (Nuttall) S. F. Blake Proc. Amer. Acad. Arts 49: 340. 1913. John L. Strother Basionym: Undefined

tribeAsteraceae tribe Astereae genusTracyina Show Lower Taxa Tracyina rostrata S. F. Blake Madroño 4: 74, fig. 1. 1937. John L. Strother Etymology: For Joseph Prince

Taxa Erigeron uncialis var. conjugans, Erigeron uncialis var. uncialis S. F. Blake Proc. Biol. Soc. Wash. 47: 173. 1934. Guy L. Nesom Common names: Lone

Chaenactidinae genusJamesianthus Show Lower Taxa Jamesianthus alabamensis S. F. Blake & Sherff Publ. Field Mus. Nat. Hist., Bot. Ser. 22: 399. 1940. John L

Carol., 179. 1788 Synonyms: Asemeia cumulicola (Small) Small A. leiodes (S. F. Blake) Small A. miamiensis (Small) Small P. corallicola Small P. cumulicola Small

speciesPolygonum achoreum S. F. Blake Rhodora 19: 232. 1917. Mihai Costea, François J. Tardif, Harold R. Hinds† Common names: Blake’s knotweed renouée coriace

arborescens subsp. parishii (Greene) Moran Haplopappus parishii (Greene) S. F. Blake Treatment appears in FNA Volume 20. Treatment on page 71. Mentioned on

genusAgalinis speciesAgalinis auriculata (Michaux) S. F. Blake Rhodora 20: 71. 1918. Judith M. Canne-Hilliker†, John F. Hays Common names: Earleaf false foxglove

genusAgalinis speciesAgalinis densiflora (Bentham) S. F. Blake Rhodora 20: 71. 1918. Judith M. Canne-Hilliker†, John F. Hays Common names: Osage false foxglove Endemic

Ecliptinae genusEchinacea speciesEchinacea laevigata (C. L. Boynton & Beadle) S. F. Blake J. Wash. Acad. Sci. 19: 273. 1929. Lowell E. Urbatsch, Kurt M. Neubig

St. John’s wort EndemicIllustrated Synonyms: Hypericum angulosum Michaux ex Willdenow H. denticulatum var. ovalifolium (Britton) S. F. Blake H. laevigatum Lamarck

29: 92. 1899 Synonyms: Viguiera longifolia (B. L. Robinson & Greenman) S. F. Blake Treatment appears in FNA Volume 21. Treatment on page 171. Mentioned on

Tranquil goldenweed Endemic Synonyms: Haplopappus clementis (Rydberg) S. F. Blake Treatment appears in FNA Volume 20. Treatment on page 416. Mentioned on

speciesSymphyotrichum concolor varietySymphyotrichum concolor var. devestitum (S. F. Blake) Semple Sida 21: 762. 2004. Luc Brouillet, John C. Semple, Geraldine A

occidentalis Rydberg Chimaphila umbellata subsp. acuta (S. F. Blake) Hultén Chimaphila umbellata var. acuta (Rydberg) S. F. Blake Chimaphila umbellata subsp. cisatlantica (Rydberg)

plate 13, figs. 15–18. 1893 Synonyms: P. longa S. F. Blake P. racemosa S. F. Blake P. reducta S. F. Blake Treatment appears in FNA Volume 10. Herbs, sometimes

R. Hinds† Common names: Fowler’s knotweed renouée de Fowler IllustratedEndemic Synonyms: Polygonum allocarpum S. F. Blake Treatment appears in FNA Volume

Bogler Common names: Arizona baccharis Synonyms: Baccharis alamosana S. F. Blake Treatment appears in FNA Volume 20. Treatment on page 34. Mentioned on

varietyRudbeckia fulgida var. deamii (S. F. Blake) Perdue Rhodora 59: 297. 1958. Lowell E. Urbatsch, Patricia B. Cox Common names: Deam’s coneflower Endemic Basionym:

tribeAsteraceae tribe Astereae genusHazardia speciesHazardia brickellioides (S. F. Blake) W. D. Clark Madroño 26: 125. 1979. W. Dennis Clark Common names: Brickellbush

leucanthera (Rafinesque) Pennell A. tenuifolia var. macrophylla (Bentham) S. F. Blake A. tenuifolia var. parviflora (Nuttall) Pennell A. tenuifolia var. polyphylla (Small)

obscura Bentham Pl. Hartw., 58. 1840 Synonyms: P. orthotricha S. F. Blake P. piliophora S. F. Blake Treatment appears in FNA Volume 10. Herbs or subshrubs, (0

glaucus (Nuttall) Torrey & A. Gray Aster glaucodes S. F. Blake Eurybia glauca (Nuttall) G. L. Nesom Treatment appears in FNA Volume 20. Treatment on page

1827 Synonyms: Stephanomeria cinerea (S. F. Blake) S. F. Blake Stephanomeria lygodesmoides M. E. Jones ex L. F. Henderson Stephanomeria pauciflora var

LAYOUT:treatment:TUOYAL familyPolygalaceae genusHebecarpa speciesHebecarpa rectipilis (S. F. Blake) J. R. Abbott J. Bot. Res. Inst. Texas 5: 134. 2011. J. Richard Abbott

reticulata (Nuttall) Calder & Roy L. Taylor Moneses uniflora var. reticulata (Nuttall) S. F. Blake Treatment appears in FNA Volume 8. Treatment on page 384. Illustrator:

Morgan Synonyms: Aster canescens var. tephrodes Aster tephrodes (A. Gray) S. F. Blake Machaeranthera tephrodes (A. Gray) Greene Treatment appears in FNA Volume

covillei Greene Pittonia 3: 162. 1897 Synonyms: Aster covillei (Greene) S. F. Blake ex M. Peck Aster ledophyllus var. covillei (Greene) Cronquist Treatment

speciesHeterotheca jonesii (S. F. Blake) S. L. Welsh & N. D. Atwood Great Basin Naturalist 35: 336. 1976. John C. Semple Common names: Jones’s goldenaster EndemicConservation

Brittlebush incienso Illustrated Synonyms: Encelia farinosa var. phenicodonta S. F. Blake) I. M. Johnston Treatment appears in FNA Volume 21. Treatment on page

domingensis (S. F. Blake) Dorr in Hispaniola, subsp. mexicana (de Candolle) Hultén in Mexico, and subsp. umbellata in Eurasia. S. F. Blake (1917), in discussing

Synonyms: Aster angustus (Lindley) Torrey & A. Gray Aster brachyactis S. F. Blake Brachyactis angusta (Lindley) Britton Brachyactis ciliata subsp. angusta (Lindley)

tribeAsteraceae tribe Cichorieae genusKrigia speciesKrigia biflora (Walter) S. F. Blake Rhodora 17: 135. 1915. Kenton L. Chambers, Robert J. O’Kennon Common names:

familyOrobanchaceae genusSeymeria speciesSeymeria cassioides (J. F. Gmelin) S. F. Blake Rhodora 17: 134. 1915. Christopher P. Randle Common names: Yaupon

Gray) Schultz-Bipontinus Microseris tenella var. aphantocarpha (A. Gray) S. F. Blake Treatment appears in FNA Volume 19. Treatment on page 344. Mentioned on

sarsaparilla sawbrier Endemic Synonyms: Smilax glauca var. leurophylla S. F. Blake Smilax spinulosa Treatment appears in FNA Volume 26. Treatment on page

Clark Endemic Synonyms: Encelia frutescens var. virginensis (A. Nelson) S. F. Blake Treatment appears in FNA Volume 21. Treatment on page 121. Mentioned on

Hartman Common names: Mesa tansyaster Synonyms: Aster tagetinus (Greene) S. F. Blake Machaeranthera humilis (A. Gray) Standley Machaeranthera tanacetifolia

tribeAsteraceae tribe Gnaphalieae genusAntennaria speciesAntennaria soliceps S. F. Blake Proc. Biol. Soc. Wash. 51: 7. 1938. Randall J. Bayer Common names: Charleston

Amer. Acad. Arts 11: 75. 1876 Synonyms: Haplopappus canus (A. Gray) S. F. Blake Treatment appears in FNA Volume 20. Treatment on page 449. Mentioned on

tribeAsteraceae tribe Astereae genusGrindelia speciesGrindelia oölepis S. F. Blake Proc. Biol. Soc. Wash. 41: 139. 1928. John L. Strother, Mark A. Wetter

Clark Endemic Basionym: Encelia frutescens var. resinosa M. E. Jones ex S. F. Blake Proc. Amer. Acad. Arts 49: 364. 1913, Synonyms: Encelia resinifera subsp

subtribe Helianthinae genusTithonia speciesTithonia rotundifolia (Miller) S. F. Blake Contr. Gray Herb. 52: 41. 1917. John C. La Duke Introduced Basionym: Tagetes

Heliantheae) subtribe Helianthinae genusHelianthus speciesHelianthus anomalus S. F. Blake J. Wash. Acad. Sci. 21: 333. 1931. Edward E. Schilling Common names: Anomalous

Heliantheae) subtribe Ecliptinae genusGeraea speciesGeraea viscida (A. Gray) S. F. Blake Proc. Amer. Acad. Arts 49: 357. 1913. Curtis Clark Common names: Sticky

1(2): 200. 1884 (as engelmanni) Synonyms: Aster glaucescens (A. Gray) S. F. Blake Aster glaucophyllus (Piper) Frye & Rigg Aster serrulatus (Greene) Frye

1916. Geraldine A. Allen Common names: Gorman’s aster Endemic Synonyms: Aster gormanii (Piper) S. F. Blake Treatment appears in FNA Volume 20. Treatment

Heliantheae) subtribe Gaillardiinae genusHelenium speciesHelenium arizonicum S. F. Blake J. Wash. Acad. Sci. 27: 388. 1937. Mark W. Bierner Common names: Arizona

Wayside aster EndemicConservation concern Synonyms: Aster vialis (Bradshaw) S. F. Blake Treatment appears in FNA Volume 20. Treatment on page 42. Mentioned on

names: Waxy coneflower Endemic Synonyms: Rudbeckia californica var. glauca S. F. Blake Treatment appears in FNA Volume 21. Treatment on page 48. Mentioned on

subtribe Ecliptinae genusEnceliopsis speciesEnceliopsis covillei (A. Nelson) S. F. Blake J. Wash. Acad. Sci. 21: 334. 1931. Curtis Clark Common names: Panamint

1905. Curtis Clark Synonyms: Encelia frutescens var. actoni (Elmer) S. F. Blake Encelia virginensis subsp. actoni (Elmer) D. D. Keck Treatment appears

subtribe Ecliptinae genusBorrichia speciesBorrichia ×cubana Britton & S. F. Blake Mem. Torrey Bot. Club 16: 116. 1920. John C. Semple Treatment appears

old Illustrated Synonyms: Geraea canescens var. paniculata (A. Gray) S. F. Blake Treatment appears in FNA Volume 21. Treatment on page 122. Mentioned on

pansus S. F. Blake Rhodora 30: 227. 1928 Synonyms: Aster ericoides subsp. pansus (S. F. Blake) A. G. Jones Aster ericoides var. pansus (S. F. Blake) B. Boivin

wasatchensis var. pulcher (S. F. Blake) S. L. Welsh Eurybia pulchra (S. F. Blake) G. L. Nesom Eurybia glauca var. pulchra (S. F. Blake) Brouillet Treatment appears

trianthus S. F. Blake J. Wash. Acad. Sci. 28: 485. 1938 Synonyms: Ericameria triantha (S. F. Blake) Shinners Xylothamia triantha (S. F. Blake) G. L. Nesom

glabrifolia (Bartlett) W. Stone Dioscorea villosa var. glabrifolia (Bartlett) S. F. Blake Dioscorea villosa subsp. glauca (Muhlenberg ex Bartlett) R. Knuth Dioscorea

nauseosus var. psilocarpus S. F. Blake J. Wash. Acad. Sci. 27: 376. 1937 Synonyms: Chrysothamnus nauseosus subsp. psilocarpus (S. F. Blake) L. C. Anderson Treatment

Basionym: Lacinaria ohlingerae S. F. Blake Bull. Torrey Bot. Club 50: 203, plate 9. 1923 Synonyms: Ammopursus ohlingerae (S. F. Blake) Small Treatment appears

genusMalacothrix speciesMalacothrix floccifera (de Candolle) S. F. Blake Contr. U.S. Natl. Herb. 22: 656. 1924. W. S. Davis Common names: Woolly desertdandelion Endemic

thompsonii (S. F. Blake ex J. W. Thompson) Cronquist Brittonia 6: 144. 1947. Guy L. Nesom EndemicConservation concern Basionym: Erigeron thompsonii S. F. Blake

genusErigeron speciesErigeron uncialis varietyErigeron uncialis var. conjugans S. F. Blake Proc. Biol. Soc. Wash. 47: 174. 1934. Guy L. Nesom IllustratedEndemicConservation

Standley Contr. U.S. Natl. Herb. 16: 180. 1913 Synonyms: Haplopappus havardii Waterfall Haplopappus viscidus (Wooton & Standley) S. F. Blake Machaeranthera

bidentoides Nuttall Trans. Amer. Philos. Soc., n. s. 7: 361. 1841 Synonyms: Bidens bidentoides var. mariana (S. F. Blake) Sherff Bidens mariana Treatment appears

Corethrogyne californica de Candolle Corethrogyne californica var. lyonii S. F. Blake Corethrogyne californica var. obovata (Bentham) Kuntze Corethrogyne filaginifolia

poux vivace Synonyms: Ambrosia psilostachya var. californica (Rydberg) S. F. Blake Ambrosia psilostachya var. coronopifolia (Torrey & A. Gray) Farwell Ambrosia

caracasana (de Candolle) Schultz-Bipontinus Galinsoga ciliata (Rafinesque) S. F. Blake Treatment appears in FNA Volume 21. Treatment on page 182. Mentioned on

Heliantheae) subtribe Gaillardiinae genusHelenium speciesHelenium virginicum S. F. Blake Claytonia 3: 13. 1936. Mark W. Bierner Common names: Virginia sneezeweed

Ihsan A. Al-Shehbaz, Marcus Koch Endemic Synonyms: Cochlearia cyclocarpa S. F. Blake Treatment appears in FNA Volume 7. Treatment on page 516. Mentioned on

Heliantheae) subtribe Coreopsidinae genusBidens speciesBidens polylepis S. F. Blake Proc. Biol. Soc. Wash. 35: 78. 1922. John L. Strother, Ronald R. Weedon

names: Scalloped milkwort Basionym: Polygala polygama Walter forma obovata S. F. Blake Rhodora 17: 201. 1915 Treatment appears in FNA Volume 10. Herbs short-lived

Prodr. 12: 643. 1848 Synonyms: Limonium californicum var. mexicanum (S. F. Blake) Munz Limonium commune var. californicum (Boissier) Greene Limonium mexicanum

names: Arizona rubberweed Endemic Synonyms: Actinea subintegra (Cockerell) S. F. Blake Treatment appears in FNA Volume 21. Treatment on page 441. Mentioned on

resinolens var. ciliata Chrysopsis viscida subsp. ciliata (A. Nelson) S. F. Blake Treatment appears in FNA Volume 20. Treatment on page 243. Mentioned on

densipilis S. F. Blake Polymnia uvedalia var. floridana S. F. Blake Treatment appears in FNA Volume 21. Treatment on page 34. Illustrator: Bee F. Gunn Copyright:

genusCirsium speciesCirsium eatonii varietyCirsium eatonii var. clokeyi (S. F. Blake) D. J. Keil Sida 21: 212. 2004. David J. Keil Common names: Clokey or

var. oblongifolia (A. Gray) Cronquist Bahia nudicaulis var. ourolepis (S. F. Blake) Cronquist Platyschkuhria integrifolia var. desertorum (M. E. Jones) W

tribeAsteraceae tribe Senecioneae genusPackera speciesPackera malmstenii (S. F. Blake ex Tidestrom) Kartesz in J. T. Kartesz and C. A. Meacham, Synth. N. Amer

tetrameres (S. F. Blake) Strother Brittonia 26: 192. 1974. John L. Strother Endemic Basionym: Tetradymia comosa subsp. tetrameres S. F. Blake Proc. Biol

var. nevadincola (S. F. Blake) G. L. Nesom Phytologia 73: 191. 1992. Guy L. Nesom Endemic Basionym: Erigeron nevadincola S. F. Blake Proc. Biol. Soc. Wash

tephroleuca (S. F. Blake) Strother Sida 11: 378. 1986. John L. Strother EndemicConservation concern Basionym: Dyssodia tephroleuca S. F. Blake J. Wash. Acad

Pennell Oenothera chrysantha Michaux O. perennis var. rectipilis (S. F. Blake) S. F. Blake O. pumila var. chrysantha (Michaux) Gordinier & Howe O. pumila

Haplopappus salicinus S. F. Blake Proc. Biol. Soc. Wash. 48: 171. 1935 (as Aplopappus) Synonyms: Hesperodoria salicina (S. F. Blake) G. L. Nesom Treatment

capitellata var. leptocarpa (Chapman ex Britton) S. F. Blake Rhynchospora capitellata var. minor (Britton) S. F. Blake Rhynchospora glomerata var. minor Britton

wislizeni Schkuhria wislizeni var. frustrata S. F. Blake Schkuhria wislizeni var. wrightii (A. Gray) S. F. Blake Treatment appears in FNA Volume 21. Treatment

Haplopappus watsonii var. rydbergii (S. F. Blake) S. L. Welsh Treatment appears in FNA Volume 20. Treatment on page 69. Mentioned on page 53. Plants 20–40 cm

sectionCoreopsis sect. Coreopsis speciesCoreopsis basalis (A. Dietrich) S. F. Blake Proc. Amer. Acad. Arts 51: 525. 1916. John L. Strother Endemic Basionym:

genusPerityle sectionPerityle sect. Laphamia speciesPerityle villosa (S. F. Blake) Shinners SouthW. Naturalist 4: 205. 1959. Sharon C. Yarborough, A. Michael

obtusata [treated by Cabrera as Gochnatia hypoleuca subsp. obtusata (S. F. Blake) Cabrera], a species of southern Mexico. None. None. window.propertie

Solidago) ser. Auriculatae speciesSolidago auriculata Shuttleworth ex S. F. Blake J. Wash. Acad. Sci. 21: 326. 1931. John C. Semple, Rachel E. Cook Common

hyssopifolia (Linnaeus) Small Euphorbia jonesii Millspaugh E. stenomeres S. F. Blake Treatment appears in FNA Volume 12. Treatment on page 272. Mentioned on

Synonyms: Bidens eatonii var. fallax Fernald Bidens eatonii var. illicita S. F. Blake Bidens eatonii var. interstes (Fassett) Fassett Bidens eatonii var. k

subfamilyMalvaceae subfam. Malvoideae genusHibiscus speciesHibiscus dasycalyx S. F. Blake & Shiller J. Wash. Acad. Sci. 48: 277, fig. 1. 1958. Orland J. Blanchard

brevifolia Greene ex Wooton & Standley Contr. U.S. Natl. Herb. 16: 190. 1913 Synonyms: Viguiera ovalis S. F. Blake Treatment appears in FNA Volume 21. Treatment

Acad. Sci., ser. 2, 5: 698. 1895 Synonyms: Viguiera annua (M. E. Jones) S. F. Blake Treatment appears in FNA Volume 21. Treatment on page 171. Stems branching

Pittonia 3: 348. 1898 Synonyms: Haplopappus croceus var. genuflexus (Greene) S. F. Blake Treatment appears in FNA Volume 20. Treatment on page 417. Plants 10–20(–40)

Synonyms: Wedelia glauca (Ortega) Hoffmann ex Hicken [sometimes attributed to S. F. Blake] Treatment appears in FNA Volume 21. Treatment on page 132. Mentioned

subtribe Chaenactidinae genusJamesianthus speciesJamesianthus alabamensis S. F. Blake & Sherff Publ. Field Mus. Nat. Hist., Bot. Ser. 22: 402. 1940. John L

tribeAsteraceae tribe Astereae genusTracyina speciesTracyina rostrata S. F. Blake Madroño 4: 75, fig. 1. 1937. John L. Strother IllustratedEndemic Treatment

subtribe Chaenactidinae genusHymenothrix speciesHymenothrix loomisii S. F. Blake Proc. Biol. Soc. Wash. 40: 49. 1927. John L. Strother Endemic Treatment

subtribe Ecliptinae genusFlourensia speciesFlourensia pringlei (A. Gray) S. F. Blake Proc. Amer. Acad. Arts 49: 375. 1913. John L. Strother Basionym: Helianthella

Aster commutatus var. crassulus (Rydberg) S. F. Blake Aster commutatus var. polycephalus (Rydberg) S. F. Blake Aster cordineri Linnaeus Aster crassulus Lindley

Coreopsidinae genusCoreocarpus speciesCoreocarpus arizonicus (A. Gray) S. F. Blake Proc. Amer. Acad. Arts 49: 344. 1913. John L. Strother Illustrated Basionym:

Synonyms: Chrysopsis viscida subsp. cinerascens S. F. Blake Heterotheca horrida subsp. cinerascens (S. F. Blake) Semple Treatment appears in FNA Volume 20.

flora). The name Coreopsis sect. Leptosyne has been misattributed to S. F. Blake, Proc. Amer. Acad. Arts 49: 341. 1913. None. Coreopsis californica, Coreopsis

Mem. Amer. Acad. Arts, n. s. 4: 67. 1849. Guy L. Nesom Common names: Hoary fleabane Synonyms: Erigeron phoenicodontus S. F. Blake Treatment appears in FNA

subglaber Cronquist Brittonia 6: 183. 1947 Synonyms: Erigeron perglaber S. F. Blake Erigeron zothecinus S. L. Welsh Treatment appears in FNA Volume 20. Treatment on

Heliantheae) subtribe Helianthinae genusViguiera speciesViguiera stenoloba S. F. Blake Contr. Gray Herb. 54: 97. 1918. Edward E. Schilling Common names: Skeletonleaf

tribeAsteraceae tribe Cichorieae genusPinaropappus speciesPinaropappus parvus S. F. Blake Contr. U.S. Natl. Herb. 22: 655. 1924. David J. Bogler Common names: Small

Greenman) Cockerell Viguiera ciliata Viguiera ciliata var. hispida (A. Gray) S. F. Blake Treatment appears in FNA Volume 21. Treatment on page 170. Annuals, 10–90

Iva annua var. caudata (Small) R. C. Jackson Iva annua var. macrocarpa (S. F. Blake) R. C. Jackson Treatment appears in FNA Volume 21. Treatment on page 27

Synonyms: Vernonia altissima Nuttall Vernonia altissima var. taeniotricha S. F. Blake Vernonia gigantea subsp. ovalifolia (Torrey & A. Gray) Urbatsch Vernonia

20: 280. 1893 Synonyms: Gnaphalium obtusifolium var. helleri (Britton) S. F. Blake Treatment appears in FNA Volume 19. Treatment on page 421. Mentioned on

Syn. Fl. N. Amer. 1(2): 184. 1884 Synonyms: Aster pilosus var. demotus S. F. Blake Aster pringlei (A. Gray) N. L. Britton Treatment appears in FNA Volume

tribeAsteraceae tribe Senecioneae genusSenecio speciesSenecio neowebsteri S. F. Blake Leafl. W. Bot. 8: 143. 1957. Theodore M. Barkley† EndemicConservation

sectionCoreopsis sect. Leptosyne speciesCoreopsis stillmanii (A. Gray) S. F. Blake Proc. Amer. Acad. Arts 49: 342. 1913. John L. Strother Basionym: Leptosyne

Ecliptinae genusPhoebanthus speciesPhoebanthus tenuifolius (Torrey & A. Gray) S. F. Blake Proc. Amer. Acad. Arts 51: 520. 1916. Edward E. Schilling Common names:

tribeAsteraceae tribe Astereae genusChaetopappa speciesChaetopappa hersheyi S. F. Blake Proc. Biol. Soc. Wash. 59: 47. 1946. Guy L. Nesom Common names: Guadalupe

genusArtemisia subgenusArtemisia subg. Artemisia speciesArtemisia papposa S. F. Blake & Cronquist Leafl. W. Bot. 6: 43, plate 1. 1950. Leila M. Shultz Common

Drummond’s jimmyweed Basionym: Linosyris drummondii Torrey & A. Gray Fl. N. Amer. 2: 233. 1842 Synonyms: Haplopappus drummondii (Torrey & A. Gray) S. F. Blake

EndemicConservation concern Basionym: Erigeron caespitosus subsp. anactis S. F. Blake Proc. Biol. Soc. Wash. 35: 175. 1922 Treatment appears in FNA Volume 20

Coreopsidinae genusThelesperma speciesThelesperma burridgeanum (Regel) S. F. Blake Proc. Biol. Soc. Wash. 41: 146. 1928. John L. Strother Endemic Basionym:

jimmyweed burroweed Illustrated Synonyms: Haplopappus tenuisectus (Greene) S. F. Blake ex L. D. Benson Treatment appears in FNA Volume 20. Treatment on page

glaberrimus (Rydberg) H. M. Hall Haplopappus spinulosus var. glaberrimus (Rydberg) S. F. Blake Machaeranthera pinnatifida var. glaberrima (Rydberg) B. L. Turner & R

Nelson) H. M. Hall Haplopappus spinulosus var. gooddingii (A. Nelson) S. F. Blake Machaeranthera pinnatifida subsp. gooddingii (A. Nelson) B. L. Turner

Philadelphia 47: 549. 1896 Synonyms: Haplopappus subviscosus (Greene) S. F. Blake Treatment appears in FNA Volume 20. Treatment on page 420. Mentioned on

tribeAsteraceae tribe Astereae genusErigeron speciesErigeron compactus S. F. Blake Proc. Biol. Soc. Wash. 35: 78. 1922. Guy L. Nesom Common names: Fern-leaf

fleabane Endemic Synonyms: Erigeron compactus var. consimilis (Cronquist) S. F. Blake Treatment appears in FNA Volume 20. Treatment on page 295. Mentioned on

tribeAsteraceae tribe Astereae genusErigeron speciesErigeron allocotus S. F. Blake J. Wash. Acad. Sci. 27: 379. 1937. Guy L. Nesom Common names: Bighorn

N. Amer. 2: 233. 1842 Synonyms: Haplopappus heterophyllus (A. Gray) S. F. Blake Haplopappus pluriflorus (Torrey & A. Gray) H. M. Hall Isocoma wrightii (A

Ecliptinae genusPhoebanthus speciesPhoebanthus grandiflorus (Torrey & A. Gray) S. F. Blake Proc. Amer. Acad. Arts 51: 520. 1916. Edward E. Schilling Common names:

Common names: Klamath thistle Endemic Synonyms: Cirsium acanthodontum S. F. Blake Cirsium oreganum Piper Treatment appears in FNA Volume 19. Treatment on

Mem. Amer. Acad. Arts, n. s. 4: 83. 1849 Synonyms: Heliomeris porteri (A. Gray) Cockerell Viguiera porteri (A. Gray) S. F. Blake Treatment appears in FNA

subgenusJuncus subg. Septati speciesJuncus subcaudatus (Engelmann) Coville & S. F. Blake Proceedings of the Biological Society of Washington 31: 45. 1918. Ralph

acutifolium (Elliott) N. Robson H. denticulatum var. acutifolium (Elliott) S. F. Blake H. denticulatum var. recognitum Fernald & B. G. Schubert H. virgatum var

John L. Strother Synonyms: Gaillardia arizonica var. pringlei (Rydberg) S. F. Blake Treatment appears in FNA Volume 21. Treatment on page 426. Mentioned on

fleabane Endemic Synonyms: Erigeron glandulosus Porter Erigeron porteri S. F. Blake Treatment appears in FNA Volume 20. Treatment on page 288. Mentioned on

Nat. Hist. New York 2: 212. 1827 Synonyms: Aster arenosus (A. Heller) S. F. Blake Leucelene ericoides (Torrey) Greene Treatment appears in FNA Volume 20

Introduced Synonyms: Conyza bilbaoana Remy Conyza bonariensis var. leiotheca (S. F. Blake) Cuatrecasas Treatment appears in FNA Volume 20. Treatment on page 350

longistipata Pennell K. velutina Pennell O. fruticosa var. eamesii (B. L. Robinson) S. F. Blake O. fruticosa var. goodmanii Munz O. fruticosa var. humifusa Allen O. fruticosa

Contr. U.S. Natl. Herb. 16: 186, plate 50. 1913. Luc Brouillet IllustratedEndemicConservation concern Synonyms: Aster horridus (Wooton & Standley) S. F. Blake

bigelovii var. wrightii (A. Gray) A. Gray Solidago wrightii var. adenophora S. F. Blake Treatment appears in FNA Volume 20. Treatment on page 117. Mentioned on

Torrey & A. Gray O. hybrida Michaux O. hybrida var. ambigua (Nuttall) S. F. Blake O. incana Nuttall O. serotina Lehmann O. tetragona var. fraseri (Pursh)

tribeAsteraceae tribe Cardueae genusCirsium speciesCirsium rhothophilum S. F. Blake J. Wash. Acad. Sci. 21: 336. 1931. David J. Keil Common names: Surf thistle

New Zealand. Carex divisa was first recorded in North America in 1933 (S. F. Blake 1934); it was also introduced into New Zealand. None. None. window.pr

Sci., ser. 2, 5: 694. 1895 Synonyms: Aster wasatchensis (M. E. Jones) S. F. Blake Eucephalus wasatchensis (M. E. Jones) Rydberg Eurybia wasatchensis (M

var. columbianus (Piper) S. F. Blake, Virgulus ×columbianus (Piper) Reveal & Keener) is the hybrid between S. campestre and S. ericoides subsp. pansum

United States, n Mexico. Varieties 3 (2 in the flora). Variety eucosma (S. F. Blake) T. Wendt is known from northern Mexico. None. Rhinotropis lindheimeri

for decades for Hebecarpa punctata and is in several on-line databases. S. F. Blake (1924) reported the wings as 7.5 × 3.7 mm; none approaching that size

in the hairy staminal filaments. The name V. dentata var. lancifolia S. F. Blake has been used for plants from Mexico. None. None. window.propertiesFr

having been treated as a distinct species by other workers, for example, S. F. Blake (1916, 1924), Wendt made a compelling case correlating morphology with

the species east of the Mississippi River occur on or near railroads. S. F. Blake (1956) discussed this eastern spread of the species. Froelichia gracilis

Michaux deposited at P, had been identified by A. Gray, M. L. Fernald, and S. F. Blake as G. neglecta. However, Pennell determined that the collection by Michaux

hirsutus are sometimes labeled with the synonymous H. leptocaulis (S. Watson) S. F. Blake, and plants from Mexico and the southwestern United States often

it is attributable to the widespread var. linifolia. Variety hirtella S. F. Blake is known only from southern Mexico. The wide distribution of var. linifolia

were S. F. Blake, N. L. Britton, R. S. Ferris, M. L. Fernald, E. L. Greene, H. M. Hall, M. E. Jones, D. D. Keck, P. A. Rydberg, J. K. Small, and S. Watson

in Old World. Species 6 (3 in the flora). Blake, S. F. 1921. Revision of the genus Acanthospermum. Contr. U.S. Natl. Herb. 20: 383–392. Acanthospermum australe

distributed in Asia (China, Kazakhstan, Mongolia, and adjacent Russia). Blake, S. F. 1957. A new cruciferous weed, Calepina irregularis, in Virginia. Rhodora

the flora). Species of Carpobrotus naturalize vegetatively and from seed. Blake, S. T. 1969. A revision of Carpobrotus and Sarcozona in Australia, genera

Johnston]; it apparently has not become established in the flora area. Blake, S. F. 1918. A revision of the genus Viguiera. Contr. Gray Herb. 54: 1–218.

mengesii (Portulacaceae). Bull. Torrey Bot. Club 113: 259–267. Montgomery, F. and D. Blake. 1969. Talinum mengesii Wolf from a new physiographic province. Bull

Nesom Phytologia 77: 264. 1995. Luc Brouillet Common names: Blake’s aster aster de Blake Basionym: Aster nemoralis var. blakei Porter Bull. Torrey Bot