Draba micropetala Hook.
  • J. Voy. N.-W. Passage, Bot.


Cite taxon page as 'WFO (2019): Draba micropetala Hook. Published on the Internet; http://www.worldfloraonline.org/taxon/wfo-0000655734. Accessed on: 23 Oct 2019'

General Information

Perennials; caudex branched (with persistent leaf remains); scapose. Stems unbranched, (0.05-)0.15-0.7(-1.1) dm, pubescent throughout, sometimes sparsely so distally, trichomes stalked, 2-4-rayed, and simple, 0.05-0.6 mm. Basal leaves (not imbricate); rosulate; petiolate; petiole (base thickened), margin ciliate, (trichomes coarse, simple and 2-rayed, 0.3-1.3 mm); blade broadly oblanceolate to broadly obovate, 0.6-2 cm × 4-12 mm, margins entire, (apex obtuse to rounded, trichomes multibranched, subcruciform), surfaces pubescent abaxially with stalked, 2-4-rayed and, rarely, simple trichomes, 0.1-0.6 mm, adaxially glabrous or with mostly simple trichomes. Cauline leaves 0. Racemes 2-7(-10)-flowered, ebracteate, often elongated in fruit; rachis often flexuous, pubescent as stem. Fruiting pedicels divaricate to ascending, straight, 1-3(-4) mm, pubescent as stem. Flowers: sepals oblong, 1.8-2.5 mm, pubescent, (trichomes simple, with short-stalked, 2-rayed ones); petals pale yellow, narrowly spatulate or oblanceolate, 2-3 × (0.7-) 1-1.5 mm; anthers ovate, 0.3-0.4 mm. Fruits elliptic-ovate, plane, slightly flattened, 5-10 × 2-3.2 mm; valves often densely pubescent, trichomes simple and spurred, 0.1-0.5 mm); ovules (16-)18-28 per ovary; style 0.05-0.3 mm (stigma about as wide as style). Seeds oblong, 1-1.1 × 0.5-0.6 mm. 2n = 48.

  • Provided by: [B].Flora of North America @ efloras.org
    • Source: [
    • 1
    • ]. 

     Information From

    Brassicaceae
    World Flora Online Data. 2017.
    • A CC0 1.0 Universal (CC0 1.0).
    Flora of North America @ efloras.org
    http://www.efloras.org/flora_page.aspx?flora_id=1
    'Flora of North America @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=1 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • B Flora of North America Association
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • C CC0 1.0 Universal (CC0 1.0).