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scotter's whitlowgrass
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| Perennials; (cespitose); caudex simple or branched (covered with persistent leaves); scapose. |
Perennials; (cespitose); caudex simple or branched (with persistent leaf remains); not scapose. |
unbranched, 0.2–1.4 dm, pubescent throughout, trichomes 2–8-rayed, 0.07–0.4 mm, and, sometimes, simple ones, 0.2–0.8 mm. |
unbranched, 0.1–0.4 dm, pubescent, trichomes 5–10-rayed, 0.05–0.2 mm, and fewer, simple and 2-rayed ones, 0.3–0.6 mm. |
rosulate; petiolate; petiole base ciliate, (trichomes simple, 0.2–1 mm); blade oblanceolate, 0.4–1.5 cm × 1–3 mm, margins entire, (ciliate as petiole base), surfaces pubescent with short-stalked, stellate, 8–12-rayed trichomes, 0.1–0.4 mm. |
rosulate; subsessile; petiole ciliate; blade obovate to oblanceolate, 0.2–0.4 cm × 0.7–1.5 mm, (base sparsely ciliate, trichomes simple and 2-rayed, 0.4–0.6 mm), margins entire, surfaces densely pubescent with subsessile, 6–12-rayed, stellate trichomes, 0.25–0.7 mm. |
0. |
1–3 (or 4); sessile; blade ovate to lanceolate, margins entire or denticulate, surfaces pubescent as basal. |
1–9-flowered, usually ebracteate, rarely proximalmost flower subtended by a tiny bract, usually considerably elongated in fruit; rachis not flexuous, pubescent as stem. |
2–5(–8)-flowered, proximalmost 1–3 flowers bracteate, slightly elongated in fruit; rachis not flexuous, pubescent, trichomes 5–10-rayed. |
sepals oblong, 2–3 mm, subapically pubescent, (trichomes simple); petals yellow, obovate to spatulate, 3.5–5.5 × 1.5–2.5 mm; anthers ovate, 0.4–0.5 mm. |
sepals (sometimes persistent), ovate, 1.2–1.7 mm, pubescent, (trichomes simple and branched); petals white, obovate, 2–2.5 × 1–1.2 mm; anthers ovate, 0.1–0.2 mm. |
divaricate-ascending, straight, 3–8(–12) mm, pubescent as stem. |
ascending, straight, 0.7–2(–3) mm, pubescent as rachis. |
lanceolate to narrowly so, plane, flattened, 5–11 × 1.5–2.5 mm; valves pubescent, trichomes simple, 0.1–0.4 mm, occasionally with some 2-rayed ones; ovules 12–18 per ovary; style 0.3–1 mm. |
elliptic to lanceolate, slightly twisted or plane, flattened, 3.5–5 × 1.5–2 mm; valves pubescent, trichomes short-stalked, (3 or) 4(–6)-rayed, 0.1–0.2 mm; ovules 16–24 per ovary; style 0.2–0.4 mm. |
ovoid, 0.8–1.2 × 0.6–0.7 mm. |
oblong, 0.7–1 × 0.4–0.5 mm. |
= 96. |
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| Flowering Jun–Jul. |
Flowering Jul–Aug. |
| Talus and gravelly summits in alpine communities |
Rocky ridges and slopes, on accumulated soil among boulders, subalpine fir and juniper communities |
| 1200-2000 m (3900-6600 ft) |
3100-3700 m (10200-12100 ft) |
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YT |
UT |
Of conservation concern. The description of Draba scotteri is based on collections from Kluane National Park, southwestern Yukon Territory. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. Draba inexpectata is known from the Uinta Mountains in Summit County. The measurements above are based on the holotype (Franklin 6328) and two of the three paratypes (Franklin 6293, 6331), all at BRY. One paratype (Goodrich 26166, BRY) is a robust, completely sterile plant of uncertain identity and was not used for the description above. Although compared in the original description with Draba lonchocarpa (with which it grows sympatrically), D. inexpectata appears most closely related to D. cana. Draba inexpectata is distinguished from the latter by having stems 1–4 cm, basal leaves non-ciliate, racemes that are 2–5(–8)-flowered and scarcely elongated in fruit, fruits elliptic to lanceolate, 3.5–5 mm, and ovules 16–24 per ovary. By contrast, D. cana has stems (6–)10–30 cm, basal leaves ciliate at the apex, racemes that are (10–)15–47(–63)-flowered and often considerably elongated in fruit, fruits linear-lanceolate or very rarely ovate-oblong, (5–)6–11 mm, and ovules 28–48 per ovary. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
| FNA vol. 7, p. 335. |
FNA vol. 7, p. 313. |
| Brassicaceae > tribe Arabideae > Draba |
Brassicaceae > tribe Arabideae > Draba |
D. abajoensis, D. albertina, D. aleutica, D. alpina, D. aprica, D. arabisans, D. arctica, D. arctogena, D. argyrea, D. arida, D. asprella, D. asterophora, D. aurea, D. aureola, D. bifurcata, D. borealis, D. brachycarpa, D. brachystylis, D. breweri, D. burkei, D. californica, D. cana, D. carnosula, D. chamissonis, D. cinerea, D. corrugata, D. corymbosa, D. crassa, D. crassifolia, D. cruciata, D. cuneifolia, D. cusickii, D. cyclomorpha, D. daviesiae, D. densifolia, D. exunguiculata, D. fladnizensis, D. glabella, D. globosa, D. graminea, D. grandis, D. grayana, D. heilii, D. helleriana, D. hitchcockii, D. howellii, D. incana, D. incerta, D. incrassata, D. inexpectata, D. jaegeri, D. juvenilis, D. kassii, D. kluanei, D. lactea, D. lemmonii, D. lonchocarpa, D. longisquamosa, D. macounii, D. maguirei, D. malpighiacea, D. micropetala, D. mogollonica, D. monoensis, D. mulliganii, D. murrayi, D. nemorosa, D. nivalis, D. norvegica, D. novolympica, D. oblongata, D. ogilviensis, D. oligosperma, D. oreibata, D. oxycarpa, D. palanderiana, D. pauciflora, D. paucifructa, D. paysonii, D. pectinipila, D. pedicellata, D. pennellii, D. petrophila, D. pilosa, D. platycarpa, D. porsildii, D. praealta, D. pterosperma, D. ramosissima, D. ramulosa, D. rectifructa, D. reptans, D. ruaxes, D. santaquinensis, D. saxosa, D. serpentina, D. sharsmithii, D. sibirica, D. sierrae, D. simmonsii, D. smithii, D. sobolifera, D. spectabilis, D. sphaerocarpa, D. sphaeroides, D. standleyi, D. stenoloba, D. stenopetala, D. streptobrachia, D. streptocarpa, D. subalpina, D. subcapitata, D. subumbellata, D. trichocarpa, D. ventosa, D. verna, D. viridis, D. weberi, D. yukonensis, D. zionensis |
D. abajoensis, D. albertina, D. aleutica, D. alpina, D. aprica, D. arabisans, D. arctica, D. arctogena, D. argyrea, D. arida, D. asprella, D. asterophora, D. aurea, D. aureola, D. bifurcata, D. borealis, D. brachycarpa, D. brachystylis, D. breweri, D. burkei, D. californica, D. cana, D. carnosula, D. chamissonis, D. cinerea, D. corrugata, D. corymbosa, D. crassa, D. crassifolia, D. cruciata, D. cuneifolia, D. cusickii, D. cyclomorpha, D. daviesiae, D. densifolia, D. exunguiculata, D. fladnizensis, D. glabella, D. globosa, D. graminea, D. grandis, D. grayana, D. heilii, D. helleriana, D. hitchcockii, D. howellii, D. incana, D. incerta, D. incrassata, D. jaegeri, D. juvenilis, D. kassii, D. kluanei, D. lactea, D. lemmonii, D. lonchocarpa, D. longisquamosa, D. macounii, D. maguirei, D. malpighiacea, D. micropetala, D. mogollonica, D. monoensis, D. mulliganii, D. murrayi, D. nemorosa, D. nivalis, D. norvegica, D. novolympica, D. oblongata, D. ogilviensis, D. oligosperma, D. oreibata, D. oxycarpa, D. palanderiana, D. pauciflora, D. paucifructa, D. paysonii, D. pectinipila, D. pedicellata, D. pennellii, D. petrophila, D. pilosa, D. platycarpa, D. porsildii, D. praealta, D. pterosperma, D. ramosissima, D. ramulosa, D. rectifructa, D. reptans, D. ruaxes, D. santaquinensis, D. saxosa, D. scotteri, D. serpentina, D. sharsmithii, D. sibirica, D. sierrae, D. simmonsii, D. smithii, D. sobolifera, D. spectabilis, D. sphaerocarpa, D. sphaeroides, D. standleyi, D. stenoloba, D. stenopetala, D. streptobrachia, D. streptocarpa, D. subalpina, D. subcapitata, D. subumbellata, D. trichocarpa, D. ventosa, D. verna, D. viridis, D. weberi, D. yukonensis, D. zionensis |
| G. A. Mulligan: Canad. J. Bot. 57: 1874. (1979) |
S. L. Welsh: in S. L. Welsh et al., Utah Fl. ed. 3, 272. (2003) |
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