Difference between revisions of "Perityle specuicola"

S. L. Welsh & Neese

Great Basin Naturalist 43: 373. 1983.

Common names: Hanging-garden or alcove rock daisy
Treatment appears in FNA Volume 21. Treatment on page 327. Mentioned on page 324, 326, 328.
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|publication year=1983
 
|publication year=1983
 
|special status=
 
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V19-20-21/V21_814.xml
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V19-20-21/V21_814.xml
 
|tribe=Asteraceae tribe Heliantheae
 
|tribe=Asteraceae tribe Heliantheae
 
|subtribe=Asteraceae (tribe Heliantheae) subtribe Peritylinae
 
|subtribe=Asteraceae (tribe Heliantheae) subtribe Peritylinae

Revision as of 21:40, 16 December 2019

Perennials or subshrubs, 30–75 cm (sprawling or pendulous, much branched, sparsely leafy); hispidulous. Leaves (mostly alternate): petioles 1–3(–8) mm; blades ovate to elliptic, 2–8 × 1–5 mm, margins entire. Heads borne singly or in corymbiform arrays, 3.5–5 × 5–6 mm. Peduncles 4–70 mm. Involucres campanulate. Phyllaries 11–16, lanceolate to oblanceolate, 3.5–5 × 0.5–1 mm. Ray florets 0. Disc florets 30–60; corollas yellow, tubes 0.5–0.8 mm, throats broadly tubular, 1.3–1.8 mm, lobes 0.4–0.6 mm. Cypselae narrowly oblanceolate, 3–3.8 mm, faces glabrous, margins thin-calloused, relatively long-ciliate; pappi usually of 1–3(–4) unequal bristles 1–2.5 mm, rarely 0.


Phenology: Flowering spring–fall.
Habitat: Rock crevices and faces along rivers and seeps
Elevation: 1100–2300 m

Discussion

Of conservation concern.

Perityle specuicola, which resembles P. megalocephala and P. stansburii in having relatively small, sparse leaves, is found only in “hanging gardens” along streams and near seeps in Grand and San Juan counties. The stems of this rayless species are usually sprawling and long-pendent, the cypsela margins are thin and long-ciliate, and the pappi are of 1–4 bristles.

Selected References

None.

Lower Taxa

None.
... more about "Perityle specuicola"
Sharon C. Yarborough +  and A. Michael Powell +
S. L. Welsh & Neese +
Undefined sect. Laphamia +
Hanging-garden or alcove rock daisy +
1100–2300 m +
Rock crevices and faces along rivers and seeps +
Flowering spring–fall. +
Great Basin Naturalist +
Undefined (tribe Undefined) subtribe Amauriinae +
Perityle specuicola +
Perityle sect. Laphamia +
species +