Flora of North America species comparison

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Aspicarpa hirtella

chaparral asphead
Habit Plants erect, 10–20 cm, or decumbent, branches 10–60(–100) cm.
Leaves

petioles 1–3 mm;

blade narrowly to broadly lanceolate or ovate, larger blades 15–45 × 6–23 mm, length 1.3–2.5 times width, base rounded or shallowly cordate, apex usually obtuse, occasionally acute, surfaces thinly sericeous or velutinous, hairs strongly appressed to V-shaped, more persistent abaxially than adaxially.
Chasmogamous

flowers in (2–)4(–7)-flowered umbels, occasionally corymbs, terminating leafy shoots;

petals carrot yellow;

staminodes equaling or longer than fertile stamens, surpassing sepals.
Cleistogamous

flowers often borne singly, or in clusters raised on slender axillary stalk, 5–55 mm, also sessile or subsessile in axils of full-sized leaves.
Nutlet

3–3.5 mm diam., smooth or rugose, dorsal crest 0.5–0.8 mm, entire, extended forward 1–1.5 mm.
2n

= 80.

Aspicarpa hirtella
Phenology Flowering and fruiting (May–)Jul–Sep(–Oct).
Habitat Dry rocky slopes among boulders, grassy slopes with oaks, pines, junipers.
Elevation 1200–2000 m. (3900–6600 ft.)
Distribution
from FNA
AZ; NM; TX; Mexico
[WildflowerSearch map]
Discussion

In the flora area, Aspicarpa hirtella is restricted to southeastern Arizona, southwestern New Mexico, and trans-Pecos Texas.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 12, p. 364.
Parent taxa Malpighiaceae > Aspicarpa
Sibling taxa
A. hyssopifolia
Synonyms A. longipes, A. urens
Name authority Richard: Mém. Mus. Hist. Nat. 2: 396, plate 13. (1815)
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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