either 2–3 valvate scales (stipules) or few-to-many imbricate scales (or occasionally naked); terminal bud absent. Leaves alternate, spirally arranged, 2–3-ranked
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to weakly incurved, seldom recurved; laminal cells short throughout or occasionally elongate in leaf base, 1-stratose or 2- to multistratose. Specialized
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Trees, shrubs, or subshrubs, usually synoecious, terrestrial, unarmed, occasionally clonal by root sprouts; young growth usually glandular, usually aromatic
15 KB (668 words) - 21:04, 7 June 2022
teeth; this condition is frequent in A. incarnata in North America and occasional in A. choisyi in South America. The three bilaterally symmetric flowers
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light brownish, rarely dark-colored. Stems green, brown, dark-brown to occasionally pinkish in parts, superficial cortex of 0–4 layers of efibrillose, nonornamented
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teeth never recurved; apex abruptly or gradually tapered or acuminate, occasionally piliferous; costa to 40–80% leaf length, moderate to somewhat stout,
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branched, occasionally tomentose; central strand absent or weakly differentiated. Leaves oblong, elliptic, narrowly spathulate or occasionally lanceolate;
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eastern North America. It exists as fertile diploids and tetraploids with occasional sterile triploids. Diploid cytotypes are prevalent in western localities
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apices evidently 3-awned; awn bases often forming a column, lateral awns occasionally reduced or absent; paleas less than 1/2 as long as the lemmas; lodicules
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incurved hairs, pubescence often concentrated at nodes and distally (hairs occasionally in 2 bands along opposite sides of stem); leaf blades usually sparsely
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varieties with dense inflorescences do not exhibit evident pedicels, the occasional plant does bear one or more pedicels to 1–2 mm, sometimes in secondary
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occurring over a wide area, Myosoton aquaticum is often noted as rare or occasional in particular states or provinces. Very few collections of this species
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Subspecies subcordata is known from Santa Cruz and Santa Rosa islands. Occasional mainland glandular-hairy individuals occur in mixed populations with subsp
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San Luis Obispo coast and Santa Rosa Island. In mainland populations, occasional glandular-hairy individuals may be found, suggesting introgression with
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flexuose, smooth or papillose (serially or 1-papillose); medial cells occasionally linear. Branch leaves smaller, narrower; alar cells less strongly differentiated
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host. Less frequent, but reliable, reports of other hosts are noted as occasional hosts. Localized shifts in host preference in Orobanche species may reflect
22 KB (1,669 words) - 19:24, 29 July 2020
scabrous, or pubescent; ligules membranous, erose to lacerate or ciliate, occasionally absent; blades, particularly those of the basal leaves, often with long
21 KB (1,159 words) - 04:42, 30 July 2020
Ptychophyllum). Inflorescences terminal, panicles, usually dense and spikelike, occasionally loose and open; disarticulation usually below the glumes, spikelets falling
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Staminate flowers: calyx 2-6-lobed; anthers usually somewhat apiculate, occasionally retuse. Pistillate flowers: calyx adnate to ovary, not forming flange;
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Herbs, annual, with dendroid (branched), sometimes almost stellate hairs, occasionally glabrous, or becoming glabrous at maturity. Stems erect or ascending
17 KB (1,353 words) - 09:33, 30 July 2020