Difference between revisions of "Argythamnia mercurialina"
Linnaea 34: 148. 1865. (as Argyrothamnia)
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Latest revision as of 18:12, 6 November 2020
Herbs, perennial, monoecious or dioecious, to 8 dm. Stems usually erect, rarely prostrate in var. pilosissima, hairy, hairs malpighiaceous. Leaves: stipules deciduous, subulate to ovate, 0.3–0.5 mm, margins not glandular; petiole usually absent, rarely to 4 mm on proximal leaves; blade lanceolate, elliptic, ovate to obovate, 1.5–7.5 × 0.6–3.5 cm, margins entire or serrulate, without glands, surfaces hairy, hairs malpighiaceous. Inflorescences bisexual or unisexual, to 12 cm; bracts ovate to lanceolate, 1.5–2.5 mm, margins without glands. Flowers without pink dye when wetted. Staminate flowers: sepals lanceolate to narrowly elliptic, 2.3–3 × 0.7–0.8 mm; petals elliptic to spatulate, 2–2.5 × 0.8–1 mm, free from androphore; nectary glands linear to obovate, 0.3–0.5 × 0.1–0.2 mm, free from androphore, glabrous or pubescent; stamens 8, staminodes 0. Pistillate flowers: sepals elliptic, 1–7 × 0.3–3 cm, without glands; petals 0 or 5, elliptic, linear, or punctiform, less than 0.5 mm; nectary glands linear, 0.7 × 1.5 mm, glabrous or pubescent; ovary strigose; styles 0.8–1.5 mm, pubescent; stigmas flattened. Capsules 6–14 mm, hispidulous to strigose. Seeds 3.2–4.5 mm, smooth to slightly papillate.
Distribution
Ark., Colo., Kans., N.Mex., Okla., Tex.
Discussion
Varieties 2 (2 in the flora).
Selected References
None.