or absent. Pollen cones with 4–10 pairs of sporophylls, each sporophyll with 3–10 pollen-sacs. Seed-cones maturing in 1–2 years, generally persisting closed
8 KB (582 words) - 00:28, 30 July 2020
Volume 3. Woody vines (erect, herbaceous perennials in C. recta). Leaf-blade 1-2-pinnate; leaflets lobed or unlobed, margins entire or toothed. Inflorescences
8 KB (418 words) - 08:38, 30 July 2020
or yellow); ovary 1/2 inferior, carpels completely connate, 1-locular; placentation parietal; styles 2; stigmas 2 (–3). Capsules 2-beaked. Seeds dark-brown
26 KB (1,593 words) - 12:56, 30 July 2020
twisted or curled, 0.1–10 cm, mostly tomentose; blade oblanceolate to elliptic or spatulate to rounded, 0.2–6 × (0.1–) 0.2–1.5 cm, lanate to tomentose or
13 KB (1,117 words) - 10:39, 30 July 2020
1/5 or less, (1.5–) 2–3.5 mm. Achenes smooth to faintly rugose (± rugose in P. basaltica). w North America, c Mexico Species 11 (10 in the flora). Section
18 KB (1,094 words) - 13:58, 30 July 2020
size of mature, dry megaspores are usually required for identification. A 10× hand lens will adequately resolve megaspore textures of some species, but
15 KB (1,109 words) - 00:22, 30 July 2020
obconic, or fusiform (basal callosities knoblike), apices truncate, ribs 10–15, smooth or scabrous (white-villous on marginal cypselae in some species);
15 KB (826 words) - 20:23, 29 July 2020
tufts, glaucous to whitish or yellowish. Stems 0.5–10 (–16) cm, erect to inclined or procumbent, simple, 2-fid, or with subfloral whorl of branches; pentagonal
12 KB (605 words) - 07:34, 30 July 2020
(tips glabrous or hairy). Cypselae columnar or obovoid to obconic, ribs 2–3 or 5–10, faces glabrous or gland-dotted (pericarps with myxogenic cells only in
9 KB (565 words) - 20:44, 29 July 2020
page 390. Plants annual or perennial; with or without rhizomes. Culms 10-460 cm, prostrate, decumbent or erect, distal portions sometimes floating, sometimes
20 KB (1,801 words) - 03:59, 30 July 2020
appendages, spine-tipped or spineless. Receptacles flat, epaleate, bristly. Florets 10–many; outer usually sterile, corollas slender and inconspicuous to much expanded
21 KB (1,712 words) - 15:30, 15 December 2020
Oenothera subg. Anogra (Spach) Reichenbach Treatment appears in FNA Volume 10. Herbs winter-annual or perennial, caulescent; from a taproot, sometimes lateral
11 KB (948 words) - 21:01, 7 June 2022
cespitose, 10–45 cm. Roots coarse. Stems 10–25 cm; sheaths 2–3, loose, inflated. Leaves: petiole 1–4 cm; blade narrowly elliptic to oblanceolate, 10–20 × 2.5–10
7 KB (564 words) - 05:29, 30 July 2020
flower, referring to the marginal sporangia Treatment appears in FNA Volume 2. Illustrator: John Myers Copyright: Flora of North America Association Plants
22 KB (1,068 words) - 00:28, 30 July 2020
Treatment on page 223. Mentioned on page 10, 186, 216, 222, 224, 225, 243, 658, 659. Plants (0.5–) 2–4 (–8) cm, in open to compact tufts or mats. Stems
13 KB (645 words) - 07:41, 30 July 2020
flat-topped and flush with soil surface], (0–) 10–150 (–300) × 7.5–80 (–100) cm, glabrous; ribs [8–] 10–32 (–40), very prominent, rib crests straight or
14 KB (948 words) - 09:26, 30 July 2020
turbinate to elliptic or cylindric, sometimes ± flattened to 4–5-angled, often 5–10-ribbed, faces glabrous or densely hairy, sometimes glandular; pappi persistent
12 KB (864 words) - 21:46, 29 July 2020
other "core" groups of traditional Helenieae Genera 5, species 28 (1 genus, 10 species in the flora). H. Robinson (1981) suggested that Hymenopappinae is
7 KB (510 words) - 23:45, 29 July 2020
Leaves borne singly, spreading in all directions from twigs, persisting to 10 years, mostly 4-angled and square in cross-section (to triangular or ± flattened)
9 KB (446 words) - 15:28, 15 December 2020
Mentioned on page 3, 5, 415, 416. Annuals, perennials, or subshrubs, 10–80+ cm (sometimes rhizomatous). Stems usually erect, usually branched (from bases
12 KB (725 words) - 22:34, 29 July 2020