Difference between revisions of "Leavenworthia alabamica"
Contr. Gray Herb. 192: 68. 1963.
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|tribe=Brassicaceae tribe Cardamineae | |tribe=Brassicaceae tribe Cardamineae | ||
|genus=Leavenworthia | |genus=Leavenworthia | ||
Latest revision as of 22:35, 5 November 2020
Stems (when present), 1–2.5 dm. Basal leaves: petiole (0.5–)1–3 cm; blade (2–)3.5–8.5(–10) cm, lobes 1–9 on each side, margins entire or shallowly dentate, terminal lobe orbicular to broadly ovate, 0.5–1.3 cm × 5–13 mm, considerably larger than lateral lobes, margins entire or shallowly dentate. Fruiting pedicels: solitary flowers 40–100 mm; racemes 20–60 mm. Flowers: sepals widely spreading, oblong-linear, (3.5–)4–6(–7) × 1–2 mm; petals spreading, white to lavender, obovate to broadly spatulate, 9–14 × (2.5–)3–6.5(–7.5) mm, claw yellow-orange, (2–)2.5–3.5 mm, apex deeply emarginate, apical notch 0.5–1 mm deep; filaments: median 3.5–6 mm, lateral 2–3.5 mm; anthers 1–1.5 mm. Fruits narrowly oblong, 1.5–3 cm × 3–4.5 mm, smooth, latiseptate; valves thin; ovules 6–12 per ovary; style 1.5–4.5 mm. Seeds 2.2–4 mm diam.; wing 0.2–0.5 mm wide; embryo straight. 2n = 22.
Phenology: Flowering Mar–Apr.
Habitat: Limestone outcrops and cedar glades, abandoned fields, pastures, rocky knolls, roadsides
Elevation: 150-300 m
Discussion
Of conservation concern.
Leavenworthia alabamica is known only from Colbert, Franklin, Lawrence, and Morgan counties.
Selected References
None.