Hebecarpa macradenia

(A. Gray) J. R. Abbott

J. Bot. Res. Inst. Texas 5: 134. 2011.

Common names: Gland-leaf or purple milkwort
Basionym: Polygalamacradenia a. Gray Smithsonian Contr. Knowl. 3(5): 39. 1852
Treatment appears in FNA Volume 10.
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Herbs or subshrubs, 0.2–2.5 dm. Stems decumbent to laxly erect, forming low, compact clumps, hairs incurved or spreading. Leaves: blade linear-oblong to oblong-lanceolate, narrowly ovate, or linear, (2–)3–9 × 0.6–1.3 mm, base rounded, apex obtuse, surfaces densely translucent-punctate from internal cavities appearing as pustular glands 0.2–0.4 mm diam., hairs incurved or spreading. Inflorescences axillary, reduced to 1 or 2(–4) flowers, 0.4–1.5 ×0.4–1.8 cm; peduncle 0–0.3(–0.5) cm; bracts ovate. Pedicels (0.5–)1–2.5 mm, pubescent. Flowers usually purple or pink, rarely whitish, 3.5–6.5 mm; sepals: upper 1 sometimes tardily deciduous to subpersistent, oblong-ovate, 1.7–2.1 mm; wings obovate, 5–5.5 × 2.5 mm, sparsely pubescent; keel 4.5 mm, pubescent. Capsules oblong to oblong-ovoid, 4–6.5 × 2.5–4 mm, densely translucent-punctate from internal cavities appearing as pustular glands 0.2–0.4 mm diam., pubescent. Seeds 4 mm; aril 1–2 mm, lobes to 1/2 length of seed. 2n = 64, 68.


Phenology: Flowering early spring–late fall.
Habitat: Open gravelly areas, usually loess-derived (or gypsum), scrub.
Elevation: 500–2400 m.

Distribution

Ariz., Nev., N.Mex., Tex., Mexico (Baja California, Chihuahua, Coahuila, Durango, Guanajuato, Hidalgo, Nuevo León, Querétaro, San Luis Potosí, Sonora, Tamaulipas).

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Hebecarpa macradenia"
J. Richard Abbott +
(A. Gray) J. R. Abbott +
Polygalamacradenia a. +
Gland-leaf or purple milkwort +
Ariz. +, Nev. +, N.Mex. +, Tex. +, Mexico (Baja California +, Chihuahua +, Coahuila +, Durango +, Guanajuato +, Hidalgo +, Nuevo León +, Querétaro +, San Luis Potosí +, Sonora +  and Tamaulipas). +
500–2400 m. +
Open gravelly areas, usually loess-derived (or gypsum), scrub. +
Flowering early spring–late fall. +
J. Bot. Res. Inst. Texas +
Hebecarpa macradenia +
Hebecarpa +
species +