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fernleaf false candytuft

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

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
from FNA
AK; NT; YT
[BONAP county map]
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 Brassicaceae > tribe Smelowskieae > Smelowskia
Sibling taxa
S. americana, S. borealis, S. johnsonii, S. ovalis, S. porsildii, S. pyriformis
Synonyms S. calycina var. media
Name authority (W. H. Drury & Rollins) Velichkin: Bot. Zhurn. (Moscow & Leningrad) 64: 167. (1979)
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