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Family:
Nyctaginaceae
narrowleaf four o'clock, more..., linearleaf four-o'clock, narrow-leaf four-o'clock, narrowleaf four o clock, narrowleaf four-o'clock
[Allionia decumbens (Nutt.) Spreng., more, Allionia gausapoides Standl., Allionia linearis Pursh, Calymenia decumbens Nutt., Mirabilis decumbens (Nutt.) Daniels, Mirabilis diffusa (Heller) C.F. Reed, Mirabilis gausapoides (Standl.) Standl., Mirabilis hirsuta var. linearis (Pursh) Boivin, Mirabilis lanceolata (Rydb.) Standl., Oxybaphus angustifolius Sweet, Oxybaphus decumbens (Nutt.) Sweet, Oxybaphus diffusus (Heller) W.C. Martin & C.R. Hutchins, Oxybaphus gausapoides Standl., Oxybaphus lanceolatus (Rydb.) Standl., Oxybaphus linearis (Pursh) B.L. Robins., Oxybaphus linearis var. subhispidus (Heimerl) Dayton]
 Russ Kleinman |
Stems decumbent, ascending, or erect, sparsely leafy with few stems to very leafy and bushy branched, leafy primarily in proximal 1/5 to throughout, 1-1.3 dm, basally minutely puberulent in 2 lines, sparsely or densely spreading-hirsute, or rarely glabrate or glabrous; distally minutely puberulent in 2 lines, sparsely or densely spreading-hirsute, or rarely glabrate or glabrous, usually glandular-puberulent or pubescent in inflorescence. Leaves strongly ascending to spreading at 5-80°; petiole 0-1.5 cm; blade green to blue-gray and glaucous, linear to linear-lanceolate, rarely lanceolate, 3-11.5 × 0.1-1(-1.8) cm, thin to fleshy, thick, and succulent, base long attenuate or narrowly acute, apex acutely tapered to rounded, surfaces glabrous, glandular-pubescent, or hirsute. Inflorescences axillary and terminal, when axillary, consisting of single involucres or short branches, when terminal with ± well-defined central axis and shorter side branches, or narrowly to widely forked without main axis; peduncle 3-10 mm, usually spreading glandular-puberulent or pilose, crosswalls of hairs pale or dark; involucres pale green, sometimes tinged with purple, narrowly to widely bell-shaped, 3-6 mm in flower, 4-10(-15) mm in fruit, spreading viscid-pubescent to hirsute, 40-70% connate, lobes ovate. Flowers 3 per involucre; perianth white to purple-pink, 0.7-1.1 cm. Fruits olive brown or dark olive brown, narrowly obovate and tapering at both ends to obovoid, 3.1-5.5 mm, pubescent with spreading crinkled hairs in tufts or ± evenly distributed, hairs 0.1-0.5 mm; ribs sometimes slightly paler, slightly elevated above surface (usually less than 0.5 times as wide as high), low rounded to round-angled, 0.5-1 times width of sulci, 0.3-1 times as wide as high, smooth throughout or sometimes rugose on sides, occasionally interrupted and tuberculate near apex; sulci with small or rarely large tubercles, or low and inconspicuous or occasionally high and prominently cross-rugose.
Plant: Perennial forb, stem many-branched Leaves: leaves opposite, linear; involucre-like calyx subtending 1-5 pink flowers Flowers: involucre-like calyx subtending 1-5 pink flowers Fruit: 5-angled.
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