Flora of North America species comparison

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Heliopsis parvifolia

mountain oxeye
Habit Perennials, 30–50(–80) cm.
Aerial stems

(from ± erect caudices) 1–10+, stramineous to reddish, glabrous or sparingly hairy.
Leaf

blades deltate-lanceolate, (1.5–)3–6 × 0.8–3 cm, margins irregularly dentate to subentire (proximal teeth larger), apices acuminate to obtuse, faces sparsely pubescent to glabrescent.
Peduncles

(6–)15–30 cm.
Involucres

12–20 mm diam.
Ray florets

9–11;

corollas golden yellow (young) to pale yellow (old), laminae (1–)2–3 cm × 5–14 mm.
Disc florets

8–50+;

corollas greenish yellow to yellow-brown (lobes brighter than tubes), 3–4.5 mm, glabrous.
Phyllaries

densely pubescent on margins and apices, abaxial faces glabrescent.
Heads

1–10+.
Cypselae

4.5–5 mm, glabrous, rugulose to subtuberculate;

pappi 0.
Paleae

lanceolate to oblong, apices acuminate, faces glabrous.
2n

= 28.

Heliopsis parvifolia
Phenology Flowering late spring–early fall.
Habitat Open, rocky mountain slopes, canyons
Elevation 1200–2500 m (3900–8200 ft)
Distribution
from FNA
AZ; NM; TX; Mexico (Chihuahua, Coahuila, Durango, Sonora, Tamaulipas)
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 21, p. 68.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Ecliptinae > Heliopsis
Sibling taxa
H. gracilis, H. helianthoides
Name authority A. Gray: Smithsonian Contr. Knowl. 5(6): 86. (1853)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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