2.5–4.8 mm, glabrous or sparsely strigose; columella 2.3–2.5 mm. Seeds light gray, ovoid, 2 × 1.2–1.3 mm, smooth or with few, very shallow depressions;
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Michaux) Sargent Treatment appears in FNA Volume 3. Trees, to 41 m. Bark light gray, fissured or exfoliating, separating freely into large, thick, broad plates
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shield-shaped and slightly raised to elongate and flat; hairs white to light gray; areolar glands absent; cortex and pith not mucilaginous, blackening when
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stipular glands absent. Flowers: stamens spreading; styles 5–11 mm, stigmas light gray. 2n = 30. Phenology: Flowering May–Sep. Habitat: Short grass prairie,
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Ceanothus ophiochilus 22 Leaves not fascicled. > 24 24 Branchlets light gray to ashy gray, puberulent to tomentulose, hairs curly or wavy, glabrescent; leaf
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fascicled, blades 6–80 × 3–45 mm; w United States. > 22 22 Branchlets light gray; capsules prominently rugose. Ceanothus incanus 22 Branchlets pale green
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red, purple-red, green, or cream, throats open or narrow. > 5 5 Herbage light gray-green (fresh leaves fleshy); corollas bicolored, sometimes unicolored
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firmly attached, terminal segments sometimes easily detached, green to light gray-green, cylindric, 3–7.5 (–12) × 1–2.5 cm; tubercles salient, short oval
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often forming large clonal stands. Bark dark-brown or black, scaly. Twigs light gray, 1.5-3 mm diam., tomentulose, tomentulum often persistent in age. Buds
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sometimes rhizomatous. Bark dark-brown or black, scaly. Twigs yellowish to light gray, 1-3 mm diam., minutely puberulent or stellate-pubescent, glabrate in
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6–1.8 mm, glabrous; columella 1.1–1.5 mm. Seeds whitish, brick-red, light gray, or light-brown, narrowly to broadly ovoid, 4-angled in cross-section, 0.9–1
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Hicoria microcarpa Treatment appears in FNA Volume 3. Trees, to 30 m. Bark light gray, smooth or fissured or exfoliating with small platelike scales or narrow
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redbrown, with light-brown, often glandular puberulence, somewhat roughened by elevated scars, aging gray to pale gray-brown. Buds ovoid, light-redbrown, 0
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rounded; surfaces abaxially light green, glabrous or sparsely pubescent, glabrous at maturity, adaxially deep green to light green or gray, dull or glossy. Acorns
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growth light green at first, pubescence not recorded, 1-year old dull redbrown, marked by occasional large, oblong lenticels, 2-years old light gray-brown;
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bark dark gray or brownish, rough; upper twigs suberect, others ± spreading; twigs slightly flexuous, new growth pubescent, 1-year old light gray-brown, older
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Herbs, erect, not scapose, (1.5–) 2–3.5 × 0.5–1 (–1.5) dm, glabrous, light gray to green. Stems spreading, without persistent leaf-bases, up to 1/5 height
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7–9 (–11) cm, surface smooth; flesh intensely bitter. Seeds whitish to light gray, ovate, 7–12 mm, margins thickened-raised, surfaces smooth. 2n = 40. Phenology:
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Mentioned on page 532. Stems: trunk bark dark gray or black, rough, thinly exfoliating whitish to light gray areas; 1-year old twigs reddish-brown. Leaves:
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laminae 0.3–1 mm. Disc-florets 8–30+. Cypselae uniformly pale tan to light gray-brown, 1–1.5 mm, faces sparsely strigillose; pappi of 15–25, white bristles
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