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céraiste aggloméré, large mouse ears, sticky chickweed, sticky mouse-ear chickweed

Habit Plants annual, with slender taproots.
Stems

erect or ascending, branched, 5–45 cm, hairy, glandular at least distally, rarely eglandular; small axillary tufts of leaves absent.

Leaves

not marcescent, ± sessile;

blade 5–20(–30) × 2–8(–15) mm, apex apiculate, covered with spreading, white, long hairs;

basal with blade oblanceolate or obovate, narrowed proximally, sometimes spatulate;

cauline with blade broadly ovate or elliptic-ovate.

Inflorescences

3–50-flowered, aggregated into dense, cymose clusters or in more-open dichasia;

bracts: proximal herbaceous, distal lanceolate, apex acute, with long, mainly eglandular hairs.

Pedicels

erect to spreading, often arcuate distally, 0.1–5 mm, shorter than capsule, glandular-pubescent.

Flowers

sepals green, rarely dark-red tipped, lanceolate, 4–5 mm, margins narrow, apex very acute, usually with glandular hairs as well as long white hairs usually extending beyond apex;

petals oblanceolate, 3–5 mm, rarely absent, usually shorter than sepals, apex deeply 2-fid;

stamens 10;

styles 5.

Capsules

narrowly cylindric, curved, 7–10 mm;

teeth 10, erect, margins convolute.

Seeds

pale brown, 0.5–0.6 mm, finely tuberculate;

testa inflated or not.

2n

= 72.

Cerastium glomeratum

Phenology Flowering throughout growing season.
Habitat Arable land, waste places, roadsides
Elevation 0-1800 m (0-5900 ft)
Distribution
from FNA
AK; AL; AR; AZ; CA; CT; DC; DE; FL; GA; ID; IL; IN; KS; KY; LA; MA; MD; MI; MO; MS; MT; NC; NJ; NM; NV; NY; OH; OK; OR; PA; RI; SC; TN; TX; VA; WA; WV; BC; NF; NS; ON; QC; YT; Europe [Introduced in North America; introduced and common in Mexico]
[WildflowerSearch map]
[BONAP county map]
Discussion

Cerastium glomeratum often has been reported as C. viscosum Linneaus, an ambiguous name; see discussion under the genus.

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

Source FNA vol. 5, p. 87.
Parent taxa Caryophyllaceae > subfam. Alsinoideae > Cerastium
Sibling taxa
C. aleuticum, C. alpinum, C. arcticum, C. arvense, C. axillare, C. beeringianum, C. bialynickii, C. brachypetalum, C. brachypodum, C. cerastoides, C. dichotomum, C. diffusum, C. dubium, C. fastigiatum, C. fischerianum, C. fontanum, C. maximum, C. nutans, C. pumilum, C. regelii, C. semidecandrum, C. terrae-novae, C. texanum, C. tomentosum, C. velutinum, C. viride
Synonyms C. acutatum, C. fulvum
Name authority Thuillier: Fl. Env. Paris ed. 2, 226. (1799)
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