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Published In: Harvard Papers in Botany 11(2): 261. 2007. (Harvard Pap. Bot.) Name publication detail

Project Name Data (Last Modified On 7/21/2009)

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13. Boechera consanguinea (Greene) Windham & Al-Shehbaz, Harvard Pap. Bot. 11: 261. 2007; Arabis consanguinea Greene, Pittonia 4: 190. 1900; A. holboellii Hornemann var. consanguinea (Greene) G. A. Mulligan, Rhodora 97: 155. 1996. TYPE: United States, Colorado. Conejos Co.: Los Pinos, 7000 ft [2121 m], 18 May 1899, C. F. Baker341 (holotype, NDG!; isotypes, E!, K!, MO!, 2NDG!, NY!, POM!, RM!, US!).

     Plants short-lived perennials or biennials, with or without caudices, lacking crowded, persistent leaf bases; apomictic, with spheroid pollen. Stems usually 1 per caudex branch, arising near ground surface from center of basal rosettes, 1.5–5.0 dm, lower parts with abundant, short-stalked 2–6-rayed trichomes 0.2–0.5 mm, upper parts glabrous to sparsely pubescent. Leaves at stem bases oblanceolate, 2–10 mm wide, usually dentate, occasionally ciliate near petiole bases with mostly spurred trichomes to 0.7 mm, blade surfaces moderately to densely pubescent with short-stalked, 4–8-rayed trichomes 0.1–0.4 mm; cauline leaves 15–36, occasionally concealing stem proximally, the uppermost sparsely pubescent, with auricles 1–3 mm. Inflorescences mostly unbranched, 20–55-flowered; fruiting pedicels 8–14 mm, reflexed to divaricate-descending, usually curved downward, with subappressed, branched trichomes or rarely glabrous. Flowers divaricate-descending at anthesis; sepals pubescent; petals pale lavender, 5.0–8.5 ´ 1–2 mm, glabrous; ovules 100–128 per fruit. Fruits 4–6 cm ´ 1–2 mm, reflexed to pendent, rarely appressed to rachises, not secund, straight or slightly curved, with parallel edges, glabrous; style 0.05–0.50 mm. Seeds biseriate to subbiseriate, mature seeds not seen.

Flowering: May.

Habitat: rocky slopes and sandy soil in ponderosa pine, pinyon-juniper, and sagebrush communities.

Elevation: 1900–2450 m.

Distribution: United States (Colorado, New Mexico, Utah).

Reproductive mode: apomictic triploid.




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