Jepson Flora Project: Jepson Interchange    

 
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
For up-to-date information about California vascular plants, visit the Jepson eFlora.

CARYOPHYLLACEAE

PINK FAMILY

Ronald L. Hartman (except Silene)

Annual, biennial, perennial herb, rarely dioecious, taprooted or rhizome generally slender
Leaves simple, generally opposite; stipules generally 0; petiole generally 0; blade entire, sheath generally 0
Inflorescence: cyme, generally open; flowers few–many or flower solitary and axillary; involucre generally 0
Flower generally bisexual, radial; hypanthium sometimes present; sepals generally 5, ± free or fused into a tube, tube generally herbaceous between lobes or teeth; awns generally 0; petals generally 5 or 0, generally tapered to base (or with claw long, blade expanded), entire to 2–several-lobed, blade generally without scale-like appendages (inner surface), generally without ear-like lobes at base; stamens generally 10, generally fertile, generally free, generally from ovary base; nectaries generally 0; ovary superior, generally 1-chambered, placentas basal or free-central, styles 2–5 or 1 and 2–3-branched
Fruit: capsule or utricle (rarely modified, dehiscent), generally sessile
Seeds: appendage generally 0
Genera in family: 85 genera, 2400 species: widespread, especially arctic, alpine, temp, n hemisphere; some cultivated (Agrostemma, Arenaria, Cerastium, Dianthus, Gypsophila, Lychnis, Saponaria, Silene, Vaccaria ).

PETRORHAGIA

Annual, erect, taprooted
Leaf: base sheathing, 1–9+ mm; blade linear to linear-lanceolate; veins 3
Inflorescence: cyme, terminal, head-like; flowers few–several; involucral bracts 2–6 per flower, widely ovate; pedicels 0–3 mm, concealed
Flower: sepals 5, fused, glabrous to sparsely, minutely hairy, tube prominent, 8–13 mm, 1–2 mm diam, cylindric, scarious between teeth, veins 5–15, teeth 0.5–1.8 mm, < tube, rounded; petals 5, 10–14 mm, claw long, blade entire or 2-lobed; styles 2, 9–12 mm
Fruit: capsule, ovoid; stalk 0.2–0.7 mm; valves 4, ascending to recurved
Seeds many, blackish brown to black
Species in genus: 20 species: Medit to s Asia
Etymology: (Greek: rock fissure, from habitat of some species)
Reference: [Rabeler 1985 Sida 11:6–44]

Introduced

P. prolifera (L.) P. Ball & Heyw.

Annual, erect, 6–60 cm
Stem: internodes glabrous or middle ones slightly scabrous
Leaf: sheath ± as long as wide, generally 1–2 mm; blade 12–30 mm, linear to linear-lanceolate
Inflorescence head-like; bracts obtuse or outer abruptly pointed
Flower: petals truncate or notched, pink to slightly purplish, vein 1, dark
Seed 1.1–1.8 mm; surface sculpture worm-like
Chromosomes: 2n=30
Ecology: Disturbed areas
Elevation: ± 400 m.
Bioregional distribution: c High Sierra Nevada (Mariposa Co.)
Distribution outside California: native to sw Europe
Synonyms: Tunica p. (L.) Scop

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bioregional map for PETRORHAGIA%20prolifera being generated
 
YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps).

Retrieve Jepson Interchange Index to Plant Names entry for Petrorhagia prolifera
Retrieve dichotomous key for Petrorhagia
Overlay Consortium of California Herbaria specimen data by county on this map
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