Smelowskia media |
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fernleaf false candytuft |
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Habit | Plants sometimes canescent basally; caudex branched. |
Stems | several from base, unbranched, (0.2–)0.5–1.4(–1.8) dm, trichomes simple, 0.5–1.2 mm, mixed with smaller, dendritic ones. |
Basal leaves | petiole 0.7–3.5 cm, ciliate, trichomes simple; blade oblanceolate to obovate, or ovate to oblong in outline, (terminal segments linear, oblong, or ovate), 0.5–3 cm × 4–12 mm, (terminal segments 0.2–1.4 cm × 0.5–4 mm), margins usually pinnatifid, rarely apically 3 or 5-lobed, apex obtuse or subacute. |
Cauline leaves | shortly petiolate or sessile; blade similar to basal, smaller distally. |
Racemes | elongated in fruit. |
Flowers | sepals 2–3 mm; petals white, suborbicular to obovate, 4–5 × 2–3 mm, narrowed to claw, 1.5–2 mm, apex rounded; anthers oblong, 0.5–0.6 mm. |
Fruiting pedicels | usually spreading to divaricate, rarely divaricate-ascending, (often forming greater than 40˚ angle, straight or upcurved), proximalmost bracteate, 4–12 mm, pubescent, trichomes simple mixed with smaller, dendritic ones. |
Fruits | divaricate-ascending, ellipsoid to oblong, 4-angled, 5–11 × 2–3 mm, base and apex cuneate; valves each with prominent midvein; ovules 8–12 per ovary; style 0.1–0.5 mm. |
Seeds | 1.7–2.2 × 0.9–1.1 mm. |
2n | = 12. |
Smelowskia media |
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Phenology | Flowering Jun–Jul. |
Habitat | Talus scree slopes, dry calcareous gravel flats, limestone scree, tundra turf, seepages, bluffs, stony slopes, grassy quartzite slopes, gravelly lake shores |
Elevation | 400-1500 m (1300-4900 ft) |
Distribution |
AK; NT; YT |
Discussion | Smelowskia media resembles S. americana in aspects of habit, flowers, and fruits. It differs by having non-appressed (versus appressed) fruits, fruiting pedicels held at wider angles (greater than 40˚ versus less), and somewhat larger seeds (1.7–2.3 × 0.9–1.2 mm versus 1.1–1.9 × 0.6–0.9 mm). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 7, p. 674. |
Parent taxa | |
Sibling taxa | |
Synonyms | S. calycina var. media |
Name authority | (W. H. Drury & Rollins) Velichkin: Bot. Zhurn. (Moscow & Leningrad) 64: 167. (1979) |
Web links |