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Key to families | Table of families and genera
Indexes to all accepted names and synonyms:
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Annual to perennial herb; rarely dioecious (Silene), taprooted or rhizome generally slender. Leaf: simple, generally opposite (subwhorled), entire, pairs at nodes often ± connected at bases; stipules generally 0; petiole generally 0. Inflorescence: generally cyme, generally open; flowers 1–many; involucre generally 0 (present in Dianthus, Petrorhagia). Flower: generally bisexual, radial; hypanthium often present but obscure; sepals (4)5, ± free or fused into a tube, margins generally scarious, more so on inner 2 or not, tube generally not scarious, awns generally 0; petals (4)5 or 0, generally tapered to base (or with claw long, limb expanded), entire to 2–several-lobed, limb generally without scale-like appendages adaxially, generally without ear-like lobes at base; stamens generally 10, generally fertile, generally free, generally from ovary base; nectaries 0 or 5; ovary superior, generally 1-chambered, placentas basal or free-central, styles 2–5 with 0 branches or 1 with 2–3 branches. Fruit: capsule or utricle (rarely ± dehiscent), generally sessile. Seed: appendage generally 0 (present in Moehringia).
83 or 89 genera, 3000 species: widespread, especially arctic, alpine, temperate northern hemisphere; some cultivated (Agrostemma, Arenaria, Cerastium, Dianthus, Gypsophila, Lychnis, Sagina, Saponaria, Silene, Vaccaria). [Rabeler & Hartman 2005 FNANM 5:3–215] Apetalous Caryophyllaceae can also be keyed in Rabeler & Hartman 2005 FNANM 5:5–8. —Scientific Editor: Thomas J. Rosatti.
Key to Caryophyllaceae
Annual, erect, taprooted. Leaf: base sheathing, 1–9+ mm; blade linear to lance-linear; veins 3. Inflorescence: terminal, head-like; flowers generally few to several; involucral bracts 2–6, 5–12 mm wide, widely ovate, ± red to brown, scarious; pedicels 0–3 mm, hidden by involucre. Flower: sepals 5, fused, glabrous to sparsely, minutely hairy, tube prominent, 8–14 mm, 1–3 mm diam, cylindric, scarious between sepals, veins 15, lobes 0.5–1.8 mm, < tube, rounded; petals 5, 10–14 mm, claw long, limb entire or 2-lobed; styles 2, 9–12 mm. Fruit: capsule, ovoid; stalk 0.2–0.7 mm; valves 4, ascending to recurved. Seed: many, black-brown to black.Key to Petrorhagia
33 species: Mediterranean to central Asia. (Greek: rock fissure, from habitat of some species) [Rabeler & Hartman 2005 FNANM 5:162–165]
Annual, erect, 21–52(65) cm. Stem: lower, middle internodes minutely hairy. Leaf: sheath length 1.5–2 × width, (2)3–4 mm; blade 10–25 mm, generally linear. Inflorescence: outer involucral bracts mucronate, inner obtuse to mucronate. Flower: petals obcordate to ± 2-lobed, pink or ± purple, veins 1–3, center generally darker. Seed: (1.3)1.5–1.8 mm, tubercled.
2n=60. Disturbed areas, roadsides; 200–550(1417) m. s Outer North Coast Ranges (Sonoma Co.), High North Coast Ranges (Lake Co.), Peninsular Ranges (San Diego Co.); British Columbia; native to southwestern Europe, northwestern Africa. Late spring–summer [Online Interchange]
Previous taxon: Petrorhagia dubia
Next taxon: Petrorhagia prolifera
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Jul 22 2014
Citation for this treatment: [Author of taxon treatment] 2013. Petrorhagia, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=37372, accessed on Jul 22 2014
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