OregonFlora species comparison

decumbent to erect, 3–15 cm;

branches many, puberulent, glandular-viscid above.

erect to prostrate.

basal narrowly oblanceolate, 0.5–4.5 cm × 1.5–3.5 mm, densely tufted; fleshy;

cauline in 1–3 pairs, linear-lanceolate, 0.5–1.5 cm × 1–2 mm, abruptly reduced upward.

opposite, pseudoverticillate, whorled, or rarely alternate; simple;

petioles often present;

stipules present or 0.

terminal; open cymes, not 1-sided, or flowers solitary;

pedicels glandular-viscid.

terminal or axillary cymes; thyrses, or capitula, or flowers 1;

bracts foliaceous, scarious, or absent;

involucel bracts (epicalyx) immediately subtending calyx occasionally present.

bisexual; erect;

calyces campanulate, not inflated in fruit, 9–12 mm; short-glandular-hairy, prominently 10-veined, not netted above; pale commissures present; commissural veins fork above and fuse with lobe veins, becoming papery;

cell walls of hairs purple;

lobes 1–2 mm;

tips acute to obtuse;

petal claws ciliate at base; appendages 2;

limbs 3–5 mm, white to purplish;

lobes 2;

stamens equaling petal claws;

styles 3(4), equaling petal claws.

bisexual or occasionally unisexual; radial; hypanthium; when present, urceolate; cup-, disk-, or dish-shaped, sometimes abruptly expanded distally;

sepals 4 or 5; distinct or connate basally or into a cup or tube;

petals (0)4 or 5; distinct;

stamens 1–10; in 1 or 2 whorls, arising from base of ovary, nectariferous disk or hypanthium rim;

staminodes usually 0 or 1–10;

pistils 1;

ovaries superior, 1-locular or rarely 2-locular proximally or 3–5 locular; placentas free-central;

basal, or axile in proximal half;

styles 1–5(6); distinct or connate proximally;

stigmas 2–5(6), often linear along adaxial surface of styles (or branches).

ovoid;

teeth 6(8);

stalks 2–3.5 mm.

capsules or utricles; carpophore sometimes present.

1–2 mm, brown, winged.

1–150(500), often laterally compressed, brown or black.

=48.