Search results

• Brassicaceae (section Key to Genera of Group 1)
  usually tetradynamous (lateral outer pair shorter than median inner 2 pairs), rarely equal in length or in 3 pairs of unequal length; filaments (slender, sometimes
  107 KB (3,718 words) - 12:07, 30 July 2020
• Asteraceae (section Key to Genera of Group 3 Heads radiate; receptacles paleate; pappi none or nearly so)
  immediately subtended by a calyculus (pl. calyculi) of (1–)3–15+ distinct, usually shorter bractlets in 1(–3+) series (e.g., Coreopsis spp., Taraxacum spp.)
  275 KB (5,940 words) - 15:30, 15 December 2020
• Euphorbiaceae
  slits; pistil 1, (1–) 3–5 (–20) -carpellate, ovary superior, (1–) 3–5 (–20) -locular, placentation axile; ovules 1 per locule, anatropous; styles 1–5 (–9), distinct
  24 KB (1,347 words) - 18:25, 29 July 2020
• Polygalaceae
  similar to outer sepals], adnate proximally to petals and filaments; petals 3 (or 5), upper 2 often apically reflexed at anthesis, lower 1 (keel) conduplicate
  16 KB (1,157 words) - 21:03, 7 June 2022
• Malvaceae subfam. Malvoideae
  staminodes absent or 5 teeth at apex of staminal column; gynoecium syncarpous, ovary superior, 3–40-carpellate; styles 1, branched or unbranched; stigmas truncate
  20 KB (532 words) - 11:23, 30 July 2020
• Crataegus
  than petals; torus absent; carpels 1–5, distinct, laterally touching, partially adnate to hypanthium, styles 1–5, lateral, distinct, adnate most of length
  26 KB (2,400 words) - 15:31, 15 December 2020
• Mentzelia sect. Bartonia
  "inner stamen length or size","leaf position","nectary position or shape","pedicel length","peduncle prominence","perianth whorl variability","petal coloration"
  20 KB (775 words) - 18:32, 29 July 2020
• Clarkia
  connate to tip in bud, reflexed singly, in pairs, or all together to 1 side at anthesis; petals 4, usually lavender or pink to dark reddish purple, pale-yellow
  19 KB (745 words) - 21:02, 7 June 2022
• Iris
  cultivated. The species of Iris differ from members of other native genera of the Iridaceae in North America in three ways: 1) the sets of outer and inner perianth
  20 KB (1,129 words) - 06:06, 30 July 2020
• Erigeron (section Group 1)
  sericeous, eglandular; pappi persistent or readily falling, usually of outer setae or scales (0.1–0.4 mm), sometimes connate, plus 5–40 (–50), stramineous, barbellate
  97 KB (2,063 words) - 21:58, 29 July 2020
• Asteraceae (tribe Heliantheae) subtribe Ecliptinae
  to chartaceous or scarious, usually conduplicate). Ray-florets usually (1–) 3–40+, sometimes 0, usually pistillate and fertile, sometimes styliferous and
  21 KB (800 words) - 22:59, 29 July 2020
• Symphyotrichum
  diam. Phyllaries 20–84 in (3–) 4–6 (–9) series, 1 (–3) -nerved (not keeled), oblong-lanceolate or oblanceolate or spatulate (outer and mid) to linear (innermost)
  62 KB (1,546 words) - 15:28, 15 December 2020
• Asteraceae (tribe Heliantheae) subtribe Gaillardiinae
  enations, sometimes glanddotted; outer disc-florets rarely subtended by paleae in Amblyolepis). Ray-florets 0, or 1–55 (in 1–3 series), pistillate and fertile
  13 KB (688 words) - 22:34, 29 July 2020
• Croton
  pale green; nectary annular, 5 glands, or absent; pistil (1–) 3-carpellate; styles (1–) 3, distinct or connate basally, unbranched, 2-fid, or multifid
  24 KB (874 words) - 18:18, 29 July 2020
• Lechea
  indurate in fruit; petals 3, maroon or green, usually shorter than sepals; stamens (3–) 5–15 (–25); carpels 3; style 0–0.5 mm; stigmas 3, dark red, fimbriate-plumose
  11 KB (511 words) - 11:39, 30 July 2020
• Oxalis
  semihomostylous (one whorl of anthers at level of stigmas, other proximal or distal), or homostylous (all anthers at level of stigmas); petals yellow, white, pink
  23 KB (1,013 words) - 18:29, 29 July 2020
• Zygophyllaceae
  pistil 1, (2–) 5-carpellate, ovary superior, (2–) 5–10-locular; placentation axile [basal]; ovules (1–) 2–10 per locule, anatropous; style 1; stigma 1. Fruits
  11 KB (500 words) - 18:15, 29 July 2020
• Solidago
  persistent, outer setiform scales (0.25–0.5 mm; rarely present) plus 2 series of 25–45 longer, barbellate bristles, mid apically attenuate, 90–95% length of inner
  18 KB (1,000 words) - 21:32, 29 July 2020
• Mentzelia sect. Trachyphytum
  immature, plants of the “Affines” clade have a single triangular ovule in the cross-sectional view of the top of the ovary. With the exception of the narrowly
  16 KB (899 words) - 18:19, 29 July 2020
• Asteraceae tribe Heliantheae
  aggregated in second-order heads. Calyculi 0 or of 1–15+ bractlets. Phyllaries persistent or falling, usually in 3–5+ series, usually distinct (sometimes connate
  30 KB (1,803 words) - 22:30, 29 July 2020

View (previous 20 | next 20) (20 | 50 | 100 | 250 | 500)