serrate Helianthus annuus 5 Stems (leaves, phyllaries) densely silvery white tomentose or floccose; leaf margins usually entire, sometimes serrulate Helianthus
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Shrubs; stolons absent. Stems erect, well branched, densely silvery-gray-tomentose, hairs conic to cylindric, dendritic, sometimes appressed-stellate, glabrescent
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margins serrulate to subentire, abaxial faces densely lanate-tomentose, adaxial densely short-tomentose. Heads in thyrsiform to subcorymbiform heads. Involucres
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Involucres globose, 2–3 × 1.5–2.5 mm. Phyllaries (8–15) ovate, canescent or tomentose. Florets: pistillate 0–2 (raylike, laminae to 1 mm); bisexual 1–3;
6 KB (622 words) - 20:47, 29 July 2020
Treatment on page 449. Mentioned on page 446. Shrubs, 60–250 cm. Stems lanate-tomentose. Leaves subsessile or subpetiolate; blades oblanceolate, 4–12 × 1–4 cm
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rounded or obtuse, apex obtuse to acute, floccose-tomentose with grayish white hairs abaxially, sparsely canescent adaxially. Spikes lax, flowers arranged in
6 KB (607 words) - 09:42, 30 July 2020
attenuate, apex acute or rarely obtuse, scaberulous or canescent adaxially, sericeous-tomentose with bright whitish hairs abaxially. Spikes dense, stout
5 KB (424 words) - 09:42, 30 July 2020
branches slender, indument white or grayish, sparse to dense, shaggy-tomentose, canescent, hairs mostly stellate, stalked, 10–30-armed. Leaf-blades ± round
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Petals (13-)15-30 mm > 16 16 Plants tomentose, trichomes dendritic; sepals 10-15 mm. Matthiola 16 Plants not tomentose, trichomes simple and/or forked; sepals
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triangular-ovate to oblong, proximal scales coarsely tuberculate and canescent-tomentose, distal ones usually elongate and narrowed, tips appressed, reddish
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10–20-flowered; branches tomentose; bracteoles caducous, numerous, linear, ± membranous, margins glandular. Flowers 20–25 mm diam.; hypanthium canescent; sepals narrowly
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floccose-tomentose (sometimes subglabrescent). Calyculi inconspicuous (bractlets tomentose). Phyllaries 13 or 21, green, 5–8+ mm, densely tomentose. Ray-florets
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reticulum, floccose or tomentose with erect, golden hairs, soon glabrate, adaxially dark or light green, glossy, floccose or tomentose when immature, soon
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horizontal to erect). Stems 1 or 2–3, clustered, densely lanate-tomentose or canescent, tufts of arachnoid tomentum in leaf-axils, or glabrescent. Basal
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Inflorescences 3–5-flowered; branches tomentose; bracteoles linear, margins glandular. Flowers 15–20 mm diam.; hypanthium tomentose; sepals narrowly triangular,
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wide, base round, margin thin, scales ovate or narrower, proximally canescent-tomentose, moderately or markedly tuberculate, tips closely appressed, reddish
7 KB (605 words) - 08:39, 30 July 2020
2–4-flowered; branches canescent-tomentose; bracteoles linear, margins glandular. Flowers 12–15 mm diam.; hypanthium tomentose; sepals narrowly triangular
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spreading, 2–5 (–8) × 2–20 (–30) dm, tomentose to canescent and grayish. Aerial flowering-stems thinly tomentose to canescent, rarely glabrous. Leaf-blade usually
6 KB (1,015 words) - 10:36, 30 July 2020
erect, branched (proximal branches elongate, branched distally), ± tomentose-canescent. Leaves basal and cauline; petiolate (petiole bases clasping); blades
7 KB (632 words) - 20:07, 29 July 2020
(margins scarious) apices acute to obtuse (ciliate), abaxial faces ± canescent-tomentose, adaxial often with yellowish or black, appressed hairs. Florets 30–100;
6 KB (541 words) - 20:07, 29 July 2020