Morphology

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Description

Plants annual, with slender taproot. Stems erect or ascending, branching near base, 2-12 cm, covered with glandular and eglandular hairs; small axillary tufts of leaves usually absent. Leaves not marcescent, sessile; blade 5-15 × 3-6 mm, hairy; basal with blades oblanceolate, spatulate, petiolelike, apex obtuse; cauline with blades lanceolate, elliptic, or ovate, apex acute to obtuse. Inflorescences lax, 3-15-flowered (rarely more) cymes; bracts lanceolate: proximal usually foliaceous, distal smaller, usually with narrow, scarious margins and apex, glandular-pubescent. Pedicels erect, curved distally, 3-8(-10) mm, longer than capsule, glandular-pubescent. Flowers: sepals green, sometimes red tipped, oblong-lanceolate, 4-5 mm, margins narrow, apex acute, pubescent, hairs short, stiff, glandular, not projecting beyond scarious, glabrous apex; petals white or purple-tinged, with branching veins, oblanceolate, ca. 5 mm, ± equaling sepals, apex 2-fid for ca. 4 length; stamens 5; styles 5. Capsules narrowly cylindric, slightly curved upward, 6-9 mm, ca. 2 times as long as sepals; teeth 10, erect, margins convolute. Seeds dark brown, deltoid, 0.6-0.7 mm, tuberculate; testa not inflated. 2n = 72.

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Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA

Source: Missouri Botanical Garden

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