Perityle tenella
Perityle huecoensis
Dixie or Springdale Rock daisy, Springdale rock-daisy
Hueco Rock daisy
petioles 2–8 mm;
blades usually broadly deltate-ovate, sometimes subovate or subcordate, 5–18(–25) × 4–18(–20) mm, (bases truncate) margins usually ± serrate, rarely laciniate.
petioles 10–80 mm;
blades broadly ovate, ovate-deltate, or ovate-rhombic, 5–12(–15) × 4–10(–15) mm, margins entire or serrate-lobed.
4–25 mm.
5–15 mm.
campanulate.
funnelform.
0.
3–5;
corollas yellow, laminae oblong, 2.5–3 × 1.5–2 mm.
23–35(–48);
corollas yellow, tubes (1–)1.2–1.6 mm, throats tubular to narrowly funnelform, 1.2–1.6(–2.2) mm, lobes 0.3–0.7 mm.
11–13;
corollas yellow, tubes 1.3–1.5 mm, throats broadly campanulate-funnelform, 0.8–1.2 mm, lobes 0.5–0.7 mm.
13–20, linear to narrowly or broadly lanceolate, 4–5(–6) × 0.8–1.3 mm.
8–10, lanceolate to oblanceolate, 3–4.5 × 0.6–1.2 mm.
borne singly or (2–10) in corymbiform arrays, 6–7 × 4–6 mm.
borne singly or in corymbiform arrays, 5.5–6 × 4–6 mm.
narrowly oblanceolate, 2.5–3.3 mm, margins obviously calloused, minutely hairy;
pappi 0 or of 1(–3) moderately stout bristles 2–2.8(–4.1) mm plus callous crowns.
linear-lanceolate, 2.2–3.2 mm, margins usually thin-calloused, short-hairy;
pappi usually of 1–3, antrorsely barbellate bristles 1–2.5 mm plus 0–4 shorter bristles, sometimes plus hyaline, laciniate scales.
= 32.
= 34.
Perityle tenella
Perityle huecoensis
Of conservation concern.
Similarities of Perityle tenella to P. congesta are discussed under the latter. Perityle tenella occurs in northwestern Arizona, southeastern Nevada, and southwestern Utah.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Of conservation concern.
Perityle huecoensis is found in the United States only in the Hueco Mountains of El Paso County, generally growing on north or northeast facing slopes. Plants in the nearby Sierra Juarez in Mexico tend to lack bristles in pappi on the disc florets and to be taller with larger leaves compared to plants in the United States populations.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
CalFlora
WildflowerSearch
iNaturalist
USDA Plants Database
