zygomorphic; sepals persistent or deciduous, distinct or partly connate (1/3–1/2 of lengths), equal (each often subtending a nectary); petals equal; stamens
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fusiform tips; archegonia 1–6 per perichaetium, ca. 1–2 mm; antheridia 5–40 per perigonium, ca. 1–2 mm. Capsule ca. 2.5–3 × 1–1.5 mm; exothecial cells with
8 KB (479 words) - 06:46, 30 July 2020
arcuate, terminating in a spikelet; branch axes 0.2-1.2 mm wide, glabrous, sometimes scabrous. Spikelets 1.4-2.6 mm long, paired, imbricate, appressed to the
9 KB (967 words) - 04:19, 30 July 2020
Univ. 1: 620, plate suppl. 3, fig. 9. 1826 Treatment appears in FNA Volume 28. Treatment on page 156. Mentioned on page 155, 166. Stems 0.5–4 (–12) cm, usually
12 KB (762 words) - 07:37, 30 July 2020
thinly tomentose or glabrous. Leaves cauline, 1 per node, quickly deciduous; petiole 0.1–1.5 cm, floccose or glabrous; blade linear, oblanceolate or spatulate
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to lax, 0.2–1.5 cm wide; peduncle 0.5 cm; pedicel 1–4 mm. Flowers: sepals pinkish to purplish, becoming greenish in age, ovate to oblong, 1–3 mm; filaments
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deltate, 0.7–1.5 × 0.7–1.3 mm, apex obtuse, farinose, often prominently keeled, covering fruit at maturity or not; stamens 5; stigmas 2, 0.3–0.5 mm. Achenes
8 KB (720 words) - 09:31, 30 July 2020
porteri, Artemisia pycnocephala Besser Bull. Soc. Imp. Naturalistes Moscou 1: 223. 1829. Leila M. Shultz Treatment appears in FNA Volume 19. Treatment on
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uppermost leaves often greatly reduced. Inflorescences axillary and terminal, of 1, rarely 2, rames, peduncles subtended by a modified leaf; rames not reflexed
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teeth single, well defined, 3–7 (–8) mm, 1–3 cm apart; apical spine dark-brown to gray, subulate or acicular, 1.5–4 cm. Scape (2–) 3–6 m. Inflorescences broadly
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irregularly rhombic to obovate, (1.5-) 2.5-4.5 (-5.5) × (1-) 3-10 cm, base narrowly cuneate, margins incised on distal 1/3, apex broadly acute to nearly
12 KB (777 words) - 08:39, 30 July 2020
similar to medial cells, usually shorter, 1–4: 1, walls pitted; medial cells quadrate to elongate-rhomboidal, 1–4: 1, 1-papillose to prorate, walls firm to thin;
12 KB (631 words) - 07:45, 30 July 2020
Roots 2-9-branched at least 1 cm from stem attachment, (5-) 10-30 (-40) cm, diffuse-fibrous, ± braided, dry; buds minute. Stems 1 (-2) per root, usually unbranched
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racemes, 1–3 cm, staminate flowers 10–20, pistillate flowers 1–4. Pedicels: staminate 0.8–2 mm, pistillate 0–5 mm. Staminate flowers: sepals 5, 0.8–1.2 mm
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columnar to tapered, papillate-swollen in proximal 1/5–1/2, rarely to nearly whole length, 0.7–1.2 (–1.5 in P. paucijuga) mm. Achenes smooth to faintly rugose
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fascicles on vegetative shoots). Heads discoid (except A. bigelovii with, rarely, 1–2 raylike florets). Receptacles epaleate, glabrous. Pappi 0. Florets: 3–20
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present, 0.5–1 dm; bracts erect, linear, proximal 10–20 × 1–2 cm, distal 3–8 × 1–2 cm; peduncle scapelike, 0.3–2.5 m, 1–2 cm diam. Flowers pendent, 3–5.5 (–6
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concave or keeled distally, margins plane, incurved or recurved, distal lamina 1-stratose to multistratose, specialized laminal and marginal chlorophyllose
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bisexual; tepals 5, connate proximally; stamens 5; filaments connate basally into tube; pseudostaminodes absent; ovule 1; style 1, 1.5–4 mm; stigmas 2 (–3)
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commonly 4–6-lobed; ovary 2–3-locular, ovules 1–2 per locule, 1-seriate. Capsules 2–3-valved, 2–3-locular. Seeds 1–2 per locule; hilum linear; embryotega lateral
9 KB (390 words) - 01:00, 30 July 2020