Association Stems with branches ascending. Leaves slightly concave, 0.6–1.1 × 0.2–0.4 mm; alar cells short-oblong, yellow, supra-alar cells quadrate, not
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clear, sparsely short-pubescent; beak 1.2–2 mm, bidentulate, teeth straight, 0.5–0.8 mm. Phenology: Fruiting Jun–Aug. Habitat: Dry to moist sandy or gravelly
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1–3.7 mm, short to long-stipitate-glandular; sepals 0.6–1.2 mm, apex rounded to acute; petals 0.2–0.7 mm wide; styles 1.6–3.1 mm. 2n = 28. Phenology: Flowering
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Volume 12. Treatment on page 101. Mentioned on page 96, 99, 102, 91, 106. Shrubs, 0.3–0.8 m, moundlike. Stems ascending or spreading, not rooting at nodes;
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Basionym: Dondia tampicensis Standley in N. L. Britton et al., N. Amer. Fl. 21: 91. 1916 Treatment appears in FNA Volume 4. Treatment on page 397. Mentioned
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page 325. Plants 15–35 cm. Leaves: petioles 0–4 mm; blades linear to lanceolate, 4–10 (–15) × 1–4 (–6) mm. Pappi 0, or of single bristles (sometimes plus callous
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appears in FNA Volume 12. Treatment on page 92. Mentioned on page 80, 91. Shrubs, evergreen, 0.5–1.5 m. Stems erect, ascending or spreading, not rooting at nodes;
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linear-lanceolate to linear, setaceous, or subulate, sometimes oblanceolate to obovate, (0) 1-7-veined, sometimes keeled over 1 vein, not necessarily the central vein
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in FNA Volume 12. Treatment on page 91. Mentioned on page 81, 90, 92. Shrubs, sometimes arborescent, evergreen, 0.5–4 m. Stems erect, ascending to arcuate
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straight, 0–0.2 mm. Achenes obovoid, 1.8–2.6 × (1–) 1.2–1.4 mm, loosely enveloped by perigynia; stipe straight 0.1–0.3 (–0.4) mm; beak straight, 0.2–0.4 (–0
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per ovary; styles connate to almost distinct, 0.2–0.8 mm; stigmas slenderly to broadly cylindrical, 0.2–0.36–0.6 mm. Capsules 4–6 mm. Phenology: Flowering
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long-cylindrical, 0.5–0.7 mm. Pistillate flowers: abaxial nectary absent, adaxial nectary oblong or narrowly oblong, 0.5–0.9 mm, shorter than stipe; stipe 0.8–1.4
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tubercle. Tubercles brown, narrowly pyramidal to linear, trigonous, 0.3–0.4 × 0.1–0.25 mm. 2n = 22. Phenology: Fruiting (spring–)summer–fall. Habitat: Fresh
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or biconvex, 3.4–4.8 (–5.3) × 1.1–1.6 (–2.2) mm, 0.4–0.65 mm thick, margin flat, including wing 0.15–0.4 mm wide, ciliate-serrulate at least on distal body;
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bone-white), pyramidal, trigonous or cross-section planoconvex, 0.3–0.7 (–1) × 0.3–0.6 (–0.9) mm, distinctly shorter or narrower than achene, apex acute
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tapering or rounded to beak, pubescent; beak 0.1–0.5 mm, emarginate or shortly bidentate, teeth less than 0.8 mm. Stigmas (2–) 3 (–4). Achenes usually trigonous
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(1.8–) 2–6 (–8) mm, lobes (0–) 2–4, narrowly oblanceolate to obovate, hairs absent or sparse to dense, ± appressed, 0.2–0.5 (–1) mm. Cauline leaves 4–15
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anthers 0.5–1 mm; styles 3-fid. Achenes medium brown, obovoid to obpyriform, compressed (often obscurely) trigonous, angles evident, 0.9–1.7 × 0.8–2 mm;
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7: 249–268. Janchen, E. 1942. Das System der Cruciferen. Oesterr. Bot. Z. 91: 1–18. Koch, M. et al. 1999b. Molecular systematics of Arabidopsis and Arabis
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(–9) glands alternating with stamens; stamens usually (3–) 5 (–9), sometimes 0 in pistillate flowers; style conic, short. Berries purple or black. Seeds 1–4
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