Basionym: Undefined subg. Eucycla Nuttall Proc. Acad. Nat. Sci. Philadelphia 4: 16. 1848 Treatment appears in FNA Volume 5. Treatment on page 224. Mentioned
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throughout. Pedicels absent or present; bracteoles absent. Flowers: sepals 4, calyx entirely green or more often conspicuously colored distally, usually
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leaf-bases). Trichomes of leaves 2-rayed. Stems erect, unbranched, (0.1–) 0.4–4dm. Basal leaves: blade linear to narrowly linear-oblanceolate, 3–5 cm × 1–2
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epicalyx bractlets (4 or) 5 (–10); hypanthium patelliform to cupulate, rarely turbinate, 0.5–2.5 (–5) × (1.5–) 2–7 (–10) mm; sepals (4 or) 5 (–10), spreading
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glabrous or pubescent abaxially, glabrous adaxially; tepals connate proximally 1/4–1/3 their length, monomorphic or dimorphic; stamens usually exserted, occasionally
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Orach saltbush Etymology: ancient Latin name Treatment appears in FNA Volume 4. Mentioned on page 226, 260, 268, 293. Herbs or shrubs, annual or perennial
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tenuinucellate. Fruits usually capsular, usually 2-valved ((3 or) 4 (–6) in Rorippa barbareifolia, (2 or) 4 in Tropidocarpum capparideum), termed siliques if length
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1–8 (–12) cm, length 1.6–2 times width, coriaceous to thin, lobes 0 or 1–4 or 5 (–9), sinuses usually shallow, sometimes deep, veins 1–8 (–10) per side
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dioecious, sometimes andropolygamous), blooming before or at leaf emergence, 4–40 mm diam.; hypanthium 1.5–8 mm, exterior glabrous or hairy; sepals 5, erect
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(bracteoles absent, present in sect. Oxycoccos). Flowers: sepals 4–5, connate basally; petals 4–5 (–6), connate nearly their entire lengths, sometimes distinct
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591, 594, 611, 618, 644. Shrubs or trees, usually main trunk dominant, 3–120 dm. Stems usually 1 in larger plants, more in smaller plants, outer spreading;
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Flowers 4–15 mm diam.; epicalyx bractlets (0–) 5; hypanthium patelliform to campanulate or cupulate to turbinate, 0.5–3 (–4) mm; sepals 5 (usually 4 in I
19 KB (1,253 words) - 14:03, 30 July 2020
1.6–5.3 cm; limb lobes 6–20 mm; Arizona, New Mexico. > 4 4 Flowers 1.6–2.8 cm; perianth tube 3–4.5 mm, limb lobes 6.5–10 mm; marginal leaf fibers conspicuous
24 KB (1,110 words) - 06:12, 30 July 2020
branches, (0.1–) 0.5–3 (–4) dm, without a whorl of bracts at midlength. Leaves in loose to compact basal rosettes; petiole 0.1–3 (–4) cm, mostly tomentose
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inflexed in bud, distinct; pistillode absent. Pistillate flowers: sepals [3–] (4–) 5 (–9) [–10] or 0, imbricate or valvate, distinct (connate for 1/2+ length
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unit through abscission of thin-walled cells at base. Seeds many, elliptic, 2–4 mm, bearing white or yellowish, large, oily, myrmecochorous elaiosome (aril)
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(2–)4–30 dm > 23 22 Leaf blades usually deeply lobed or pedately divided, sometimes highly dissected; stems 1–10 dm > 26 23 Stems (2–)4–7(–10) dm, usually
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ridged, sometimes centrally thickened, veins obscure to prominent; cauline 0–4 on branched stems, usually similar to basal, subtending each branch, decreasing
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the inflorescence branches, turbinate to campanulate or hemispheric; teeth 4–5 (–8), erect to spreading, very rarely lobelike and reflexed. Flowers not
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perianth hypogynous; hypanthium absent; sepals 4–6, distinct or connate basally to most of length; petals 0 or [4–] 5 [–6], distinct; nectary present or absent;
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