The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

hairy pink, windmill pink

Habit Plants annual.
Stems

erect, simple or branched, (9.5–)25–40(–91) cm;

internodes glabrous or mid-stem ones densely stipitate-glandular.

Leaves

sheath (3–)4–9 mm, 2–3 times as long as wide;

blade 3-veined, linear to oblanceolate, 10–60 mm, margins scabrous.

Inflorescences

capitate;

inflorescence bracts and involucel bracetoles enclosing flowers, broadly ovate, brown-scarious, apex mucronate.

Pedicels

0.1–3 mm.

Flowers

sepals (8–)12–15 mm;

petals pink or purplish, primary veins 3, (3–)5–6 veins darkly colored near base of blade, apex 2-fid, sometimes obcordate.

Seeds

helmet-shaped, 1–1.4 mm, covered with conical papillae.

2n

= 30 (Europe).

Petrorhagia dubia

Phenology Flowering spring–early summer.
Habitat Roadsides, woodland savannas
Elevation 0-1800 m (0-5900 ft)
Distribution
from FNA
CA; LA; MS; OK; TX; Europe (Mediterranean region); Africa [Introduced in North America; introduced in South America, Africa (Republic of South Africa), Australia]
[WildflowerSearch map]
[BONAP county map]
Discussion

All material of Petrorhagia dubia from California, where it appears to be have been introduced in the Sierra Nevada foothills in the 1920s, and one population from northeastern Texas, have stipitate-glandular internodes. The presence of glabrous internodes in the Louisiana, Mississippi, Oklahoma, and most Texas populations (where it was first seen along roadsides in 1967) led to early confusion with P. prolifera. This suggests that these populations were derived from seed that came from Italy or Sicily, the only area in the native range where plants with glabrous stems are known. Roadside planting of either Italian rye grass [Lolium perenne Linnaeus var. italicum (A. Braun) Parnell] or crimson clover (Trifolium incarnatum Linnaeus) in Texas is the likely source of P. dubia in that region.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 5, p. 165.
Parent taxa Caryophyllaceae > subfam. Caryophylloideae > Petrorhagia
Sibling taxa
P. nanteuilii, P. prolifera, P. saxifraga
Synonyms Dianthus dubius, Kohlrauschia velutina, P. velutina
Name authority (Rafinesque) G. López & Romo: Anales Jard. Bot. Madrid 45: 363. (1988)
Web links