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chickweed oxytheca, chickweed starry puncturebract

Habit Plants 1–2.5 × (0.3–)1–4(–5) dm.
Stems

spreading to prostrate.

Leaf

blades spatulate to oblanceolate, 1–6(–8) × 0.3–1.2(–1.8) cm.

Inflorescences

diffuse, 0.5–2 dm;

bracts 3–8 × 0.5–1.5 mm, awns 0.2–0.5 mm.

Peduncles

erect, 0.1–1 cm, sparsely glandular or glabrous, otherwise absent.

Involucres

concolored, narrowly to broadly turbinate, 4–7 mm, sparsely glandular;

teeth 5(–6), connate ca. 1/2 their length;

awns greenish to reddish, 0.3–1 mm.

Flowers

2–3;

perianth greenish yellow to reddish, 1–2 mm;

tepals broadly oblanceolate, 3-lobed apically 1/5 their length, lobes not laciniate;

filaments 0.8–1.2 mm;

anthers red, oval, 0.2–0.4 mm.

Achenes

golden to red-brown, 1.2–1.5 mm.

2n

= 40.

Sidotheca caryophylloides

Phenology Flowering Jun–Sep.
Habitat Sandy to gravelly flats, washes, and slopes, chaparral communities, montane conifer woodlands
Elevation 1300-2600 m (4300-8500 ft)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
Discussion

Sidotheca caryophylloides grows in the Transverse Ranges and the southern Sierra Nevada.

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

Source FNA vol. 5, p. 440.
Parent taxa Polygonaceae > subfam. Eriogonoideae > Sidotheca
Sibling taxa
S. emarginata, S. trilobata
Synonyms Oxytheca caryophylloides, Eriogonum caryophylloides
Name authority (Parry) Reveal: Harvard Pap. Bot. 9: 211. (2004)
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