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Amphiachyris dracunculoides Amphipappus Amphipappus fremontii Amphipappus fremontii var. fremontii Amphipappus fremontii var. spinosus Aphanostephus A cont. Aphanostephus

rotundifolia Amianthium muscitoxicum Amphiachyris dracunculoides Amphipappus fremontii Anaphalis margaritacea Andromeda Andromeda polifolia Andromeda polifolia

Salicaceae Salicaceae Salicaceae Salicaceae Salicaceae Populus fremontii Populus fremontii subsp. fremontii Populus grandidentata Populus tremuloides Populus heterophylla

didymum, Lepidium draba, Lepidium eastwoodiae, Lepidium flavum, Lepidium fremontii, Lepidium heterophyllum, Lepidium huberi, Lepidium integrifolium, Lepidium

sectionChaenactis sect. Chaenactis Show Lower Taxa Chaenactis cusickii, Chaenactis fremontii, Chaenactis glabriuscula, Chaenactis macrantha, Chaenactis nevii, Chaenactis

canadensis, Berberis darwinii, Berberis dictyota, Berberis fendleri, Berberis fremontii, Berberis haematocarpa, Berberis harrisoniana, Berberis higginsiae, Berberis

eremophilus, Senecio ertterae, Senecio erucifolius, Senecio flaccidus, Senecio fremontii, Senecio hydrophiloides, Senecio hydrophilus, Senecio integerrimus, Senecio

baldwinii, Clematis bigelovii, Clematis coactilis, Clematis crispa, Clematis fremontii, Clematis glaucophylla, Clematis hirsutissima, Clematis morefieldii, Clematis

Plants simple below, branching above; seeds 1-1.3 mm diam. Chenopodium fremontii 29 Plants profusely branching from base; seeds 0.9-1.1(-1.2) mm diam Chenopodium

genusAmphipappus speciesAmphipappus fremontii Show Lower Taxa Amphipappus fremontii var. fremontii, Amphipappus fremontii var. spinosus Torrey & A. Gray Boston

Physaria fendleri, Physaria filiformis, Physaria floribunda, Physaria fremontii, Physaria garrettii, Physaria geyeri, Physaria globosa, Physaria gooddingii

Penstemon cyanocaulis, Penstemon deaveri, Penstemon debilis, Penstemon fremontii, Penstemon gibbensii, Penstemon glaber, Penstemon hallii, Penstemon idahoensis

Heliantheae) subtribe Madiinae genusCalycadenia Show Lower Taxa Calycadenia fremontii, Calycadenia hooveri, Calycadenia micrantha, Calycadenia mollis, Calycadenia

dulcis, Prunus emarginata, Prunus eremophila, Prunus fasciculata, Prunus fremontii, Prunus geniculata, Prunus glandulosa, Prunus gracilis, Prunus havardii

familySalicaceae genusPopulus speciesPopulus fremontii Show Lower Taxa Populus fremontii subsp. fremontii, Populus fremontii subsp. mesetae S. Watson Proc. Amer

Chenopodium fremontii, C. neomexicanum, C. palmeri, and C. watsonii. Amer. J. Bot. 75: 97–105. Chenopodium albescens, Chenopodium fremontii, Chenopodium

Lower Taxa Layia carnosa, Layia chrysanthemoides, Layia discoidea, Layia fremontii, Layia gaillardioides, Layia glandulosa, Layia heterotricha, Layia hieracioides

Diplacus cusickioides, Diplacus deschutesensis, Diplacus douglasii, Diplacus fremontii, Diplacus grandiflorus, Diplacus graniticola, Diplacus jepsonii, Diplacus

Zigadenus elegans, Zigadenus exaltatus, Zigadenus fontanus, Zigadenus fremontii, Zigadenus glaberrimus, Zigadenus micranthus, Zigadenus mogollonensis,

genusSenecio speciesSenecio fremontii Show Lower Taxa Senecio fremontii var. blitoides, Senecio fremontii var. fremontii, Senecio fremontii var. inexpectatus, Senecio

Lower Taxa Garrya buxifolia, Garrya elliptica, Garrya flavescens, Garrya fremontii, Garrya goldmanii, Garrya lindheimeri, Garrya veatchii, Garrya wrightii

Populus angustifolia, Populus balsamifera, Populus deltoides, Populus fremontii, Populus grandidentata, Populus heterophylla, Populus tremuloides, Populus

Malacothamnus densiflorus, Malacothamnus fasciculatus, Malacothamnus fremontii, Malacothamnus jonesii, Malacothamnus marrubioides, Malacothamnus palmeri

tribeAsteraceae tribe Astereae genusAmphipappus Show Lower Taxa Amphipappus fremontii Torrey & A. Gray Boston J. Nat. Hist. 5: 107. 1845. Guy L. Nesom Etymology:

Ornduffia Show Lower Taxa Lasthenia burkei, Lasthenia conjugens, Lasthenia fremontii R. Chan Madroño 48: 38. 2001. Raymund Chan, Robert Ornduff† Treatment appears

speciesPopulus fremontii subspeciesPopulus fremontii subsp. fremontii James E. Eckenwalder Illustrated Synonyms: Populus arizonica Sargent Populus fremontii var.

speciesOenothera macrocarpa Show Lower Taxa Oenothera macrocarpa subsp. fremontii, Oenothera macrocarpa subsp. incana, Oenothera macrocarpa subsp. macrocarpa

sectionPenstemon sect. Glabri speciesPenstemon fremontii Show Lower Taxa Penstemon fremontii var. fremontii, Penstemon fremontii var. glabrescens Torrey & A. Gray Proc

subtribe Chaenactidinae genusSyntrichopappus Show Lower Taxa Syntrichopappus fremontii, Syntrichopappus lemmonii A. Gray in War Department [U.S.], Pacif. Railr

tribe Astereae genusAmphipappus speciesAmphipappus fremontii varietyAmphipappus fremontii var. fremontii Guy L. Nesom IllustratedEndemic Treatment appears

tribeAsteraceae tribe Astereae genusAmphipappus speciesAmphipappus fremontii varietyAmphipappus fremontii var. spinosus (A. Nelson) Ced. Porter Amer. J. Bot. 30:

E. Clemants, Sergei L. Mosyakin WeedyIllustrated Basionym: Chenopodium fremontii var. incanum S. Watson Proc. Amer. Acad. Arts 9: 94. 1874 Treatment appears

Endemic Basionym: Dichaeta fremontii Torrey ex A. Gray Mem. Amer. Acad. Arts, n. s. 4: 102. 1849 Synonyms: Baeria fremontii (Torrey ex A. Gray) A. Gray

speciesBerberis fremontii Torrey in W. H. Emory, Rep. U.S. Mex. Bound. 2(1): 30. 1859. Alan T. Whittemore EndemicIllustrated Synonyms: Mahonia fremontii (Torrey)

Chenopodium subsectionChenopodium subsect. Fremontia speciesChenopodium fremontii S. Watson Botany (Fortieth Par allel), 287. 1871. Steven E. Clemants, Sergei

(tribe Heliantheae) subtribe Madiinae genusCalycadenia speciesCalycadenia fremontii A. Gray in W. H. Emory, Rep. U.S. Mex. Bound. 2(1): 100. 1859. Robert L

foliosa A. Gray Boston J. Nat. Hist. 5: 108. 1845 Synonyms: Haplopappus fremontii A. Gray Treatment appears in FNA Volume 20. Treatment on page 412. Mentioned

tribeBrassicaceae tribe Boechereae genusPolyctenium Show Lower Taxa Polyctenium fremontii Greene Leafl. Bot. Observ. Crit. 2: 219. 1912. Ihsan A. Al-Shehbaz Etymology:

LAYOUT:treatment:TUOYAL familySalicaceae genusPopulus speciesPopulus fremontii subspeciesPopulus fremontii subsp. mesetae Eckenwalder J. Arnold Arbor. 58: 201, fig

Basionym: Anticlea fremontii Torrey Pacif. Railr. Rep., 4(5): 144. 1856 Synonyms: Toxicoscordion fremontii (Torrey) Rydberg Toxicoscordion fremontii var. minor R

Endemic Basionym: Malvastrum fremontii Torrey ex A. Gray Mem. Amer. Acad. Arts, n. s. 4: 21. 1849 Synonyms: Malacothamnus fremontii subsp. cercophorus (B. L

Fremont's clematis EndemicIllustrated Synonyms: Clematis fremontii var. riehlii R.O. Erickson Viorna fremontii Treatment appears in FNA Volume 3. Illustrator: John

subtribeAsteraceae (tribe Heliantheae) subtribe Madiinae genusLayia speciesLayia fremontii (Torrey & A. Gray) A. Gray Mem. Amer. Acad. Arts, n. s. 4: 103. 1849. Bruce

F. Gaskin IllustratedEndemic Synonyms: Lepidium fremontii var. stipitatum Rollins Nasturtium fremontii Treatment appears in FNA Volume 7. Treatment on

Basionym: Eunanus fremontii Bentham in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 10: 374. 1846 Synonyms: Mimulus fremontii (Bentham) A. Gray

Mexico. Subspecies 3 (3 in the flora). Populus deltoides hybridizes with P. fremontii, the other native species of sect. Aigeiros, in the Colorado Plateau region

Amygdaloideae tribeRosaceae tribe Amygdaleae genusPrunus speciesPrunus fremontii S. Watson in W. H. Brewer et al., Bot. California 2: 442. 1880. Joseph

Heliantheae) subtribe Chaenactidinae genusSyntrichopappus speciesSyntrichopappus fremontii A. Gray in War Department [U.S.], Pacif. Railr. Rep. 4(5): 106, plate 15

Chaenactidinae genusChaenactis sectionChaenactis sect. Chaenactis speciesChaenactis fremontii A. Gray Proc. Amer. Acad. Arts 19: 30. 1883. James D. Morefield Common

Berberidaceae Berberidaceae Berberis trifoliolata Berberis fendleri Berberis fremontii Berberis haematocarpa John Myers John Myers John Myers John Myers Berberidaceae

names: Contra Costa goldfields EndemicConservation concern Synonyms: Baeria fremontii var. conjugens (Greene) Ferris Treatment appears in FNA Volume 21. Treatment

Brown, Guy L. Nesom Common names: Ward’s goldenweed Basionym: Haplopappus fremontii var. wardii A. Gray in A. Gray et al., Syn. Fl. N. Amer. 1(2): 128. 1884

Clemants, Sergei L. Mosyakin IllustratedEndemic Synonyms: Chenopodium fremontii var. atrovirens (Rydberg) Fosberg Treatment appears in FNA Volume 4. Mentioned

pauciflora is variable and closely related to and intergrades with C. fremontii. It is found mostly in the foothills of the Coast Ranges from Tehama County

cottonwood parent is P. fremontii subsp. mesetae, but other occurrences have arisen through hybridization with P. fremontii subsp. fremontii (G. C. Bennion et

Oönopsis monocephala A. Nelson Bot. Gaz. 31: 399. 1901 Synonyms: Haplopappus fremontii subsp. monocephalus (A. Nelson) H. M. Hall Treatment appears in FNA Volume

Hydrogr. Basin Upper Mississippi, 157. 1843 Synonyms: M. glabratus var. fremontii (Bentham) A. L. Grant M. glabratus var. jamesii (Torrey & A. Gray ex Bentham)

Penstemon sectionPenstemon sect. Glabri speciesPenstemon fremontii varietyPenstemon fremontii var. fremontii Craig C. Freeman Endemic Treatment appears in FNA

Buellton). Thompson described Mimulus fremontii var. vandenbergensis as a geographically distinct variant of M. fremontii. The discontinuous morphological difference

tribeAsteraceae tribe Senecioneae genusSenecio speciesSenecio fremontii varietySenecio fremontii var. fremontii Theodore M. Barkley† Endemic Synonyms: Senecio occidentalis

Penstemon sectionPenstemon sect. Glabri speciesPenstemon fremontii varietyPenstemon fremontii var. glabrescens Dorn & Lichvar Madroño 37: 195, fig. 1.

tribeAsteraceae tribe Senecioneae genusSenecio speciesSenecio fremontii varietySenecio fremontii var. occidentalis A. Gray in W. H. Brewer et al., Bot. California

tribeAsteraceae tribe Senecioneae genusSenecio speciesSenecio fremontii varietySenecio fremontii var. inexpectatus Cronquist in A. Cronquist et al., Intermount

tribeAsteraceae tribe Senecioneae genusSenecio speciesSenecio fremontii varietySenecio fremontii var. blitoides (Greene) Cronquist in C. L. Hitchcock et al

macrocarpa subsp. fremontii (S. Watson) W. L. Wagner Ann. Missouri Bot. Gard. 70: 194. 1983. Warren L. Wagner Basionym: Oenothera fremontii S. Watson Proc

familyBrassicaceae tribeBrassicaceae tribe Physarieae genusPhysaria speciesPhysaria fremontii (Rollins & E. A. Shaw) O’Kane & Al-Shehbaz Novon 12: 323. 2002. Steve L

LAYOUT:treatment:TUOYAL familyGarryaceae genusGarrya speciesGarrya fremontii Torrey in War Department [U.S.], Pacif. Railr. Rep. 4(5): 136. 1857. Guy L

speciesPolyctenium fremontii (S. Watson) Greene Leafl. Bot. Observ. Crit. 2: 219. 1912. Ihsan A. Al-Shehbaz IllustratedEndemic Basionym: Smelowskia fremontii S. Watson

Eckenwalder Common names: Rio Grande cottonwood álamillo Basionym: Populus fremontii var. wislizeni S. Watson Amer. J. Sci. Arts, ser. 3, 15: 136. 1878 (as

Schwartz Common names: Desert death camas Endemic Basionym: Zigadenus fremontii var. brevibracteatus M. E. Jones Contr. W. Bot. 12: 78. 1908 (as Zygadenus)

Malacothamnus gracilis (Eastwood) Kearney M. niveus (Eastwood) Kearney Malvastrum fremontii var. niveum (Eastwood) McMinn M. gracile Eastwood M. niveum Eastwood Treatment

Salicaceae Salicaceae Salicaceae Salicaceae Salicaceae Populus fremontii Populus fremontii subsp. fremontii Populus grandidentata Populus tremuloides Populus heterophylla

Synonyms: Senecio filifolius var. fremontii Torrey & A. Gray Senecio riddellii var. parksii Cory Senecio spartioides var. fremontii (Torrey & A. Gray) Greenman

Brittonia 31: 105. 1979. Craig C. Freeman Endemic Basionym: Penstemon fremontii var. subglaber A. Gray in A. Gray et al., Syn. Fl. N. Amer. 2(1): 262.

Berberidaceae Berberidaceae Berberis trifoliolata Berberis fendleri Berberis fremontii Berberis haematocarpa John Myers John Myers John Myers John Myers Berberidaceae

Endemic Basionym: Mimulus viscidus Congdon Erythea 7: 187. 1900 Synonyms: M. fremontii var. viscidus (Congdon) Jepson M. subsecundus var. viscidus (Congdon) A

known or understood taxon. In some ways it is intermediate between C. fremontii and C. album. There are additional scattered reports from Arizona, Colorado

(1965), some forms of C. glabriuscula differ from C. stevioides or C. fremontii only in corolla color, which can be lost in older or poorly preserved specimens

found with species of sects. Hologymne and Ornduffia, particularly L. fremontii. In the northern part of its range, L. platycarpha is more robust and has

like C. fremontii occurs around sand dunes in the Mojave Desert. Chaenactis furcata and C. latifolia are forms possibly influenced by C. fremontii genes

ovate or lanceolate leaflets and small, juicy, deep red berries) and B. fremontii (with ovate or orbiculate leaflets and large, dry, inflated, yellowish

surface of the leaves, whereas the closely related species C. albicoma, C. fremontii, and C. viticaulis have stomates on both leaf surfaces (C. S. Keener 1967)

to M. fasciculatus; in indument and calyx characters, it approaches M. fremontii. The petals are often not overlapping, a feature rare in Malacothamnus

have indicated that L. chrysanthemoides is most closely related to L. fremontii (B. G. Baldwin, unpubl.); the two species are reportedly highly interfertile

conservation concern. Senecio pattersonensis has the aspect of a depauperate S. fremontii with notably narrow leaves. Some plants in collections appear to be intergrades

Senecio toiyabensis rests upon materials that suggest introgression with S. fremontii. Some specimens usually referred to 41. S. pattersonensis suggest introgression

Upon naming Townsendia fendleri, Gray stated that it “most resembles” T. fremontii Torrey & A. Gray (i.e., T. incana). I feel that the affinity of T. fendleri

1988). Populus ×parryi Sargent, a hybrid between P. trichocarpa and P. fremontii, is commonly found in a wide variety of mesic habitats throughout the region

California. Malacothamnus fasciculatus intergrades with M. davidsonii and M. fremontii in the Transverse Ranges and M. densiflorus in the Peninsula Ranges. None

grows with Atriplex fruticulosa, A. rosea, Downingia bella, Lasthenia fremontii, Cressa truxillensis, Eryngium castrense, Frankenia grandiflora, Psilocarpus

variable on a single specimen. Berberis higginsiae is intermediate between B. fremontii and B. haematocarpa in its variable leaflet shape and berries that are