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- Mentioned on page 327. Herbs, erect, simple or sparingly branched, 1.5–4 (–10) dm, white scurfy. Stems aging red, terete or obscurely angled, brittle. Leaves6 KB (661 words) - 09:36, 30 July 2020
- Shrubs, erect, forming slender to rounded or flat-topped bush, (1.4–) 2–6 (–10) dm. Stems: internodes 4-lined at first, then terete. Leaf-blades narrowly oblong6 KB (449 words) - 11:15, 30 July 2020
- 9. Treatment on page 484. Mentioned on page 481, 483. Plants 50–80 (–100) dm. Branches mostly purplish brown or dark reddish-brown, glabrous; thorns present7 KB (701 words) - 14:34, 30 July 2020
- Volume 9. Treatment on page 636. Mentioned on page 531. Shrubs or trees, 40–60 dm. Stems: twigs: new growth not recorded, 1-year old bright redbrown, older7 KB (679 words) - 13:47, 30 July 2020
- in FNA Volume 9. Treatment on page 471. Mentioned on page 469. Plants 20–40 dm. Stems: thorns sparse; young twigs tomentose, hairs dense grayish or yellowish6 KB (579 words) - 14:33, 30 July 2020
- page 361. Mentioned on page 355, 363. Shrubs or trees, not suckering, 40–120 dm, not thorny. Twigs with terminal end buds, glabrous. Leaves persistent; petiole8 KB (589 words) - 14:17, 30 July 2020
- Copyright: Flora of North America Association Herbs, perennial, cespitose, 5–10 dm. Culms erect, 2–5 mm diam., smooth. Cataphylls 1–2, straw-colored, apex rounded6 KB (391 words) - 00:52, 30 July 2020
- Schlechtendal) A. Heller Treatment appears in FNA Volume 10. Herbs perennial, 1–4 dm, with fibrous-roots. Stems often several from base, erect to decumbent, branched7 KB (577 words) - 21:03, 7 June 2022
- FNA Volume 12. Treatment on page 472. Mentioned on page 471. Shrubs 10–30 dm. Branches erect to ascending. Leaves: petiole 1–3 mm, sparsely to densely8 KB (562 words) - 18:33, 29 July 2020
- 1868 Treatment appears in FNA Volume 22. Herbs, perennial, cespitose, 2–7 dm. Culms erect, 1–4 mm diam., smooth. Cataphylls 1–2, straw-colored to pink6 KB (433 words) - 00:59, 30 July 2020
- long-creeping rhizomes at aerenchymatous base and from mid and distal nodes, 3–10 dm. Stems: internodes 4-lined. Leaves ascending to deflexed, sessile; blade narrowly6 KB (413 words) - 11:16, 30 July 2020
- 373. Mentioned on page 359. Shrubs, suckering unknown, much branched, 10–40 dm, thorny. Twigs with axillary end buds, glabrous. Leaves deciduous; petiole7 KB (504 words) - 14:20, 30 July 2020
- Bound. 2(1): 200. 1859 Treatment appears in FNA Volume 12. Treatment on page 188. Mentioned on page 156, 184, 185. Subshrubs, 2.5–5 dm. Stems erect to6 KB (448 words) - 18:19, 29 July 2020
- Mentioned on page 331, 333. Shrubs, monoecious (often apparently dioecious), 5–10 dm. Stems sparsely branched, branches ascending, longest leafy branchlets to8 KB (474 words) - 18:33, 29 July 2020
- pumilum A. Gray Treatment appears in FNA Volume 10. Herbs perennial, slender, 1.5–4dm, green to slightly gray glaucous, glabrous. Stems from creeping rhizome,5 KB (512 words) - 21:03, 7 June 2022
- 78. Mentioned on page 75, 79. Shrubs, erect, forming rounded clumps, 5–15 dm. Stems: internodes 6-lined at first, soon 4-lined, then terete. Leaf-blades7 KB (467 words) - 11:15, 30 July 2020
- Treatment on page 638. Mentioned on page 543, 639. Shrubs or trees, 50–70 dm. Stems: twigs: new growth pubescent, 1-year old light gray-brown, older grayish;6 KB (616 words) - 13:47, 30 July 2020
- robustus Engelmann Treatment appears in FNA Volume 22. Herbs, perennial, cespitose, 3–10 dm. Roots without terminal tubers. Culms erect, terete, 4–6 mm diam., smooth7 KB (447 words) - 01:02, 30 July 2020
- perennial, cespitose, generally light green to yellowish green when dry, to 4.8 dm, not glaucous. Stems branched, with 1 node, 1.4–2.3 mm wide, glabrous, margins7 KB (555 words) - 06:05, 30 July 2020
- Treatment on page 368. Mentioned on page 357, 359, 369. Trees, not suckering, 60–200 dm, not thorny. Twigs with terminal end buds, glabrous. Leaves deciduous; petiole8 KB (606 words) - 14:19, 30 July 2020