Abronia turbinata |
Abronia bolackii |
|
---|---|---|
annual abronia, trans montane abronia, trans montane sand verbena |
bolack's sand verbena |
|
Habit | Plants annual, infrequently perennial. | Plants perennial, short caulescent or nearly acaulescent. |
Stems | decumbent to ascending, much branched, elongate, reddish at least basally, glandular-pubescent, rarely glabrous or viscid-pubescent. |
decumbent to erect, minutely and sparsely glandular-pubescent or ± glabrate, arising from cordlike rhizomes. |
Leaves | petiole 1–4.5 cm; blade broadly ovate to orbiculate, 1–5 × 0.5–3 cm, margins entire or ± repand and undulate, surfaces glabrous or sparsely glandular-pubescent. |
petiole 1–4 cm; blade elliptic-oblong to ovate, 1–4 × 0.5–2 cm, margins entire to shallowly sinuate, often ± undulate, surfaces minutely puberulent or glabrous (especially in age). |
Inflorescences | peduncle longer than subtending petiole; bracts lanceolate to ovate, 3–10 × 1–5 mm, papery, puberulent to densely glandular-pubescent; flowers 15–35. |
peduncle longer than subtending petiole; bracts broadly lanceolate, ovate, obovate, or almost round, 5–10 × 3–10 mm, scarious, apex acute, obutse, or rounded, glandular-puberulent; flowers 15–25. |
Perianth | tube greenish to coral pink, 6–18 mm, limb white to pale pink, 5–8 mm diam. |
tube greenish, 7–11 mm, limb white, 3 mm diam. |
Fruits | winged, turbinate, 3–8 × 3–6 mm, coriaceous, apex broadly tapered to prominent beak; wings (2–)5 (when 2, folded together) truncate distally with conspicuous dilations, cavities extending throughout. |
broadly turbinate, 5–7 × 3–5 mm, scarious, apex truncate and slightly beaked; wings (3–)5, dilated distally and ± flattened perpendicular to plane of lamina, dilations ± as long as wide, thin walled, cavities extending throughout. |
Abronia turbinata |
Abronia bolackii |
|
Phenology | Flowering spring–fall. | Flowering spring–summer. |
Habitat | Sandy soils, desert scrub | Gypseous sandy or gravelly soils, open areas, among sparse shrubs |
Elevation | 900-2500 m (3000-8200 ft) | 1700 m (5600 ft) |
Distribution |
CA; NV; OR
|
NM |
Discussion | As far as is known, Abronia bolackii is restricted to gypseous lenses of the Ojo Alamo Formation in San Juan County, New Mexico. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 4, p. 66. | FNA vol. 4, p. 64. |
Parent taxa | Nyctaginaceae > Abronia | Nyctaginaceae > Abronia |
Sibling taxa | ||
Name authority | Torrey ex S. Watson: Botany (Fortieth Parallel), 285, plate 31, figs. 1–5, 8, 9. (1871) | N. D. Atwood: Novon 12: 167, fig. 1. (2002) |
Web links |