Perityle ciliata
Perityle congesta
fringe rock daisy, hairy rock-daisy
Grand Canyon rockdaisy, Kaibab or Grand Canyon Rock daisy
petioles 2–15 mm;
blades deltate-ovate to ovate-rhombic, 6–23 × 5–24 mm, margins usually entire or serrate to serrate-crenate, sometimes shallow-lobed.
petioles 2.5–10(–15) mm (shorter than blades);
blades elliptic, lanceolate, or ovate, 5–17(–20) × 4–8(–10) mm, (bases cuneate) margins usually entire or with 2(–6) teeth.
5–25 mm.
3–17 mm.
campanulate.
campanulate.
6–10;
corollas white, sometimes pink tinged, laminae broadly oblong to oblong-elliptic, 3–7 × 1.5–3 mm.
0.
30–40;
corollas yellow, often purple tinged, tubes 0.8–1 mm, throats tubular to tubular-funnelform, 1.2–1.4 mm, lobes 0.3–0.4 mm.
30–40;
corollas yellow, tubes 0.8–1 mm, throats tubular to subfunnelform, 1.2–1.5 mm, lobes 0.3–0.5 mm.
13–20, linear-lanceolate to narrow-ovate, 4–5.5 × 1–2 mm.
12–16, narrowly lanceolate, oblong-lanceolate, or lanceolate, 3.2–4.5 × 0.8–1.4 mm.
in corymbiform arrays, 5–7 × 5.5–7 mm.
borne singly or (2–8) in corymbiform arrays, 5–6(–6.5) × 3.5–4.5(–5) mm.
linear-oblong to oblanceolate, 2–2.8 mm, margins prominently calloused, long-ciliate;
pappi of 2(–3+) barbellulate bristles 1.5–2.5 mm plus crowns of hyaline, laciniate scales.
narrowly oblanceolate, (2–)2.5–3 mm,margins thin-calloused, short-hairy;
pappi of 1–2 subequal or unequal bristles 2–2.7 mm.
= 34.
= 32.
Perityle ciliata
Perityle congesta
Perityle ciliata is found only in the mountains of central Arizona in Apache, Coconino, Gila, Mohave, and Yavapai counties. It appears to be most closely related to P. coronopifolia.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Of conservation concern.
The leaf blades of Perityle congesta usually have a tooth on each margin, cuneate bases, and unobtrusive veins abaxially; those of P. tenella usually have serrate margins, truncate bases, and raised veins abaxially. Perityle congesta is found on both rims and extending into the Grand Canyon and northward almost to the Utah border. Available specimens suggest that P. congesta and P. tenella intergrade where their ranges overlap in northwestern Arizona on the Colorado Plateau. Specimens from the Colorado Plateau have intermediate leaf shapes and induments.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
WildflowerSearch
iNaturalist
USDA Plants Database
