Anelsonia |
Brassicaceae tribe Boechereae |
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anelsonia |
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Habit | Perennials; (cespitose, deep-rooted); scapose; pubescent, trichomes short-stalked, dendritic or irregularly forked, (soft). | Perennials or, rarely, biennials; eglandular. |
Stems | erect, unbranched. |
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Leaves | (persistent) basal; rosulate; petiolate; blade margins entire. |
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Cauline leaves | (sometimes absent); petiolate, subsessile, or sessile; blade base auriculate or not, margins usually entire or dentate, rarely pinnatifid. |
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Trichomes | often short-stalked, sessile, or subsessile, usually forked or dendritic, rarely malpighiaceous, sometimes simple or absent. |
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Racemes | (corymbose, few- to several-flowered), not or slightly elongated in fruit. |
ebracteate, often elongated in fruit. |
Flowers | sepals (early caducous, erect), oblong, (pubescent), base of lateral pair not saccate; petals white to purplish, oblanceolate, (slightly longer than sepals); stamens tetradynamous; filaments not dilated basally; anthers ovate; nectar glands confluent, subtending bases of stamens. |
actinomorphic; sepals erect, ascending, or spreading, lateral pair usually not saccate basally; petals white, yellowish, pink, lavender, or purple, claw present, often indistinct; filaments unappendaged, not winged; pollen 3-colpate. |
Fruiting pedicels | ascending to suberect, slender. |
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Fruits | (erect, siliques or silicles), sessile or short-stipitate, lanceolate, broadly oblong to narrowly ovate, not torulose, latiseptate; valves each with prominent midvein and somewhat anastomosing lateral veins, glabrous; replum rounded; septum complete; ovules 10–24 per ovary; stigma capitate. |
usually siliques, rarely silicles, dehiscent, unsegmented, usually latiseptate, rarely terete or slightly angustiseptate; ovules [2–]4–250 per ovary; style usually distinct, rarely obsolete; stigma usually entire, rarely 2-lobed. |
Seeds | biseriate, somewhat flattened, not winged, oblong to ovoid; seed coat (silvery, papillate), not mucilaginous when wetted; cotyledons accumbent. |
biseriate, sub-biseriate, uniseriate, or, rarely, aseriate; cotyledons accumbent or incumbent. |
x | = 7. |
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Anelsonia |
Brassicaceae tribe Boechereae |
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Distribution |
w United States |
North America; Asia (Russian Far East) |
Discussion | Species 1. Anelsonia is most closely related to Boechera and Phoenicaulis, from which it is readily distinguished by its scapose habit and papillate seeds. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Genera 7, species 119 (7 genera, 117 species in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 7, p. 347. | FNA vol. 7, p. 347. |
Parent taxa | ||
Subordinate taxa | ||
Name authority | J. F. Macbride & Payson: Bot. Gaz. 64: 81. (1917) | Al-Shehbaz: Pl. Syst Evol. 259: 111. (2006) |
Web links |