Abronia turbinata |
Abronia latifolia |
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annual abronia, trans montane abronia, trans montane sand verbena |
coastal sand-verbena, yellow sand-verbena |
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Habit | Plants annual, infrequently perennial. | Plants perennial. |
Stems | decumbent to ascending, much branched, elongate, reddish at least basally, glandular-pubescent, rarely glabrous or viscid-pubescent. |
prostrate, often buried in sand, usually much branched, forming large mats, succulent, densely glandular-pubescent to glabrous. |
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. |
1–6 cm; blade deltate-ovate to reniform, 2.2–4.8 × 2.7–5.2 cm, margins usually entire, sometimes slightly repand and undulate, surfaces glabrous or viscid-puberulent. |
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 ovate, 5–9 × 3–5 mm, thin, yellowish green, glandular-pubescent; flowers 17–35. |
Perianth | tube greenish to coral pink, 6–18 mm, limb white to pale pink, 5–8 mm diam. |
tube yellowish green, 6.5–18 mm, limb yellow, 8–13 mm diam., lobes slightly to moderately reflexed. |
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. |
winged, ± rhombic in profile, attenuate at both ends, 8–15 × 6–14 mm, scarious; wings 4–5, thin walled, small, cavities extending into wing. |
Abronia turbinata |
Abronia latifolia |
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Phenology | Flowering spring–fall. | Flowering spring–summer. |
Habitat | Sandy soils, desert scrub | Sandy soils, coastal scrub, lees of dunes adjacent to strand |
Elevation | 900-2500 m (3000-8200 ft) | 0-50 m (0-200 ft) |
Distribution |
CA; NV; OR
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CA; OR; WA; BC
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Discussion | S. S. Tillett (1967) considered plants of Abronia umbellata var. minor (Standley) Munz to be introgressants between A. latifolia and A. umbellata. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 4, p. 66. | FNA vol. 4, p. 68. |
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) | Eschscholtz: Mém. Acad. Imp. Sci. St. Pétersbourg Hist. Acad. 10: 281. (1826) |
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