Aspicarpa hirtella

Richard

Mém. Mus. Hist. Nat. 2: 396, plate 13. 1815.

Synonyms: Aspicarpa longipes A. Gray A. urens Lagasca
Treatment appears in FNA Volume 12. Treatment on page 364. Mentioned on page 363.

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.


Phenology: Flowering and fruiting (May–)Jul–Sep(–Oct).
Habitat: Dry rocky slopes among boulders, grassy slopes with oaks, pines, junipers.
Elevation: 1200–2000 m.

Distribution

V12 286-distribution-map.jpg

Ariz., N.Mex., Tex., Mexico

Discussion

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

Selected References

None.

Lower Taxa

None.
... more about "Aspicarpa hirtella"
1 +  and 2 +
minute +  and subequal +
Acute (?) +  and Obtuse (?) +
William R. Anderson† +
Richard +
cordate +  and rounded +
ovate +  and lanceolate +
60 cm600 mm <br />0.6 m <br /> (100 cm1,000 mm <br />1 m <br />) +
several-flowered +
Ariz. +, N.Mex. +, Tex. +  and Mexico +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
1200–2000 m. +
subsessile +  and sessile +
0 cm0 mm <br />0 m <br /> (?) +  and 0.15 cm1.5 mm <br />0.0015 m <br /> (?) +
cleistogamous +  and chasmogamous +
0.5 cm5 mm <br />0.005 m <br /> (5.5 cm55 mm <br />0.055 m <br />) +
multicellular +
Dry rocky slopes among boulders, grassy slopes with oaks, pines, junipers. +
2-armed +  and unicellular +
persistent +
submedifixed +  and medifixed +
v--shaped +
axillary +  and terminal +
1.5 cm15 mm <br />0.015 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (2.3 cm23 mm <br />0.023 m <br />) +
full-sized +
0.3 cm3 mm <br />0.003 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
rugose +  and smooth +
outermost +
rudimentary +  and visible +
1 +  and 2 +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Flowering and fruiting (May–)Jul–Sep(–Oct). +
2-carpellate +  and 3-carpellate +
Mém. Mus. Hist. Nat. +
connate +  and distinct +
free +, connate +  and distinct +
3 (?) +  and 5 (?) +
truncate +  and capitate +
interpetiolar +
distinct +
rudimentary +
cylindric +
velutinous +  and sericeous +
Aspicarpa longipes +  and A. urens +
Aspicarpa hirtella +
Aspicarpa +
species +
(2-)4(-7)-flowered +