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short-Ray Rock daisy

alcove rockdaisy, hanging-garden or alcove rock daisy

Habit 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.

Peduncles

4–70 mm.

Involucres

campanulate.

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.

Phyllaries

11–16, lanceolate to oblanceolate, 3.5–5 × 0.5–1 mm.

Heads

borne singly or in corymbiform arrays, 3.5–5 × 5–6 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.

Perityle microglossa

Perityle specuicola

Phenology Flowering spring–fall.
Habitat Rock crevices and faces along rivers and seeps
Elevation 1100–2300 m (3600–7500 ft)
Distribution
from FNA
AZ; TX; Mexico
[WildflowerSearch map]
[BONAP county map]
from FNA
UT
[BONAP county map]
Discussion

Varieties 2 (1 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

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.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 21, p. 321. FNA vol. 21, p. 327.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Peritylinae > Perityle > sect. Perityle Asteraceae > tribe Heliantheae > subtribe Peritylinae > Perityle > sect. Laphamia
Sibling taxa
P. aglossa, P. ajoensis, P. ambrosiifolia, P. angustifolia, P. bisetosa, P. cernua, P. ciliata, P. cinerea, P. cochisensis, P. congesta, P. coronopifolia, P. dissecta, P. emoryi, P. fosteri, P. gilensis, P. gracilis, P. huecoensis, P. intricata, P. inyoensis, P. lemmonii, P. lindheimeri, P. megalocephala, P. parryi, P. quinqueflora, P. rupestris, P. saxicola, P. specuicola, P. stansburyi, P. staurophylla, P. tenella, P. vaseyi, P. villosa, P. vitreomontana, P. warnockii
P. aglossa, P. ajoensis, P. ambrosiifolia, P. angustifolia, P. bisetosa, P. cernua, P. ciliata, P. cinerea, P. cochisensis, P. congesta, P. coronopifolia, P. dissecta, P. emoryi, P. fosteri, P. gilensis, P. gracilis, P. huecoensis, P. intricata, P. inyoensis, P. lemmonii, P. lindheimeri, P. megalocephala, P. microglossa, P. parryi, P. quinqueflora, P. rupestris, P. saxicola, P. stansburyi, P. staurophylla, P. tenella, P. vaseyi, P. villosa, P. vitreomontana, P. warnockii
Subordinate taxa
P. microglossa var. microglossa
Name authority Bentham: Bot. Voy. Sulphur, 119. (1844) S. L. Welsh & Neese: Great Basin Naturalist 43: 373. (1983)
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