Difference between revisions of "Eurybia saxicastelli"
Phytologia 77: 261. 1995.
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|common_names=Rockcastle aster | |common_names=Rockcastle aster | ||
| − | |basionyms={{Treatment/ID/ | + | |special_status={{Treatment/ID/Special_status |
| + | |code=E | ||
| + | |label=Endemic | ||
| + | }}{{Treatment/ID/Special_status | ||
| + | |code=C | ||
| + | |label=Conservation concern | ||
| + | }} | ||
| + | |basionyms={{Treatment/ID/Basionym | ||
|name=Aster saxicastelli | |name=Aster saxicastelli | ||
|authority=J. J. N. Campbell & Medley | |authority=J. J. N. Campbell & Medley | ||
| + | |rank=species | ||
| + | |publication_title=Sida | ||
| + | |publication_place=13: 277, figs. 1, 2. 1989 (as saxicastellii) | ||
}} | }} | ||
|synonyms= | |synonyms= | ||
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|distribution=Ky.;Tenn. | |distribution=Ky.;Tenn. | ||
|discussion=<p>Of conservation concern.</p><!-- | |discussion=<p>Of conservation concern.</p><!-- | ||
| − | --><p>Eurybia saxicastelli is known only from the Rockcastle River of Kentucky (J. J. N. Campbell and M. E. Medley 1989) and Tennessee.</p> | + | --><p><i>Eurybia saxicastelli</i> is known only from the Rockcastle River of Kentucky (J. J. N. Campbell and M. E. Medley 1989) and Tennessee.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Eurybia saxicastelli | name=Eurybia saxicastelli | ||
| − | |||
|authority=(J. J. N. Campbell & Medley) G. L. Nesom | |authority=(J. J. N. Campbell & Medley) G. L. Nesom | ||
|rank=species | |rank=species | ||
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|publication title=Phytologia | |publication title=Phytologia | ||
|publication year=1995 | |publication year=1995 | ||
| − | |special status= | + | |special status=Endemic;Conservation concern |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V20_854.xml |
|tribe=Asteraceae tribe Astereae | |tribe=Asteraceae tribe Astereae | ||
|genus=Eurybia | |genus=Eurybia | ||
Latest revision as of 21:06, 5 November 2020
Plants 40–120 cm; in clones; rhizomes elongate, strong. Stems 1, erect, strict (slightly flexuous distally), simple, glabrous, distally ± villosulous (arrays). Leaves cauline; proximal withering by flowering, narrowly winged-petiolate, blades broadly oblanceolate or elliptic to obovate, smaller than mid; mid and distal winged-petiolate (5–30 mm), broadly elliptic to oblanceolate, (70–)90–140 × 40–50(–60) mm, reduced distally, bases cuneate, with 4–5 pairs of marked veins, margins coarsely serrate (teeth 1–4 mm), slightly revolute, scabrous, apices acuminate; abaxial faces glabrescent, adaxial sparsely pilose, mainly on veins. Heads 1–10, borne singly or in corymbiform arrays. Peduncles sparsely pilose; bracts 0–1, foliaceous, remotely serrulate. Involucres campanulate, 7–11 mm, shorter than pappi. Phyllaries 32–36 in 4–5 series, broadly oblong, strongly unequal, scarious, dark green zones wide, from 1/2 distally, margins hyaline, narrow, erose, densely ciliate, apices appressed or often slightly squarrose, obtuse to subacute, faces glabrous, eglandular. Ray florets 10–30; corollas pale white to pale blue, 10–15 × 1.5–2 mm. Disc florets 10–20; corollas yellow turning pinkish, ca. 4.5–5 mm, tubes longer than funnelform throats, lobes spreading, triangular, ca. 1.5 mm. Cypselae tan, fusiform, cylindric, 5–6 mm, ribs 7–11, stramineous, faces ± strigose; pappi of pale stramineous (clavate) bristles 5–7 mm, shorter than to ± equaling disc corollas. 2n = 54.
Phenology: Flowering late summer–fall.
Habitat: Back edge of spring-flooded, summer-dry, sandstone boulder–cobble river bars with shrubby vegetation
Elevation: (600–)1000–1500 m
Discussion
Of conservation concern.
Eurybia saxicastelli is known only from the Rockcastle River of Kentucky (J. J. N. Campbell and M. E. Medley 1989) and Tennessee.
Selected References
None.