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branch-lettuce, lettuceleaf saxifrage

Habit Plants solitary or in groups, with bulbils on caudices.
Leaves

basal;

petiole ± indistinct, (broad), flattened, 3–15 cm;

blade lanceolate to oblanceolate, 4–35 cm, thin, base attenuate, margins irregularly serrate to dentate, ciliate, surfaces sparsely hairy.

Inflorescences

(30–)50+–flowered, very open, lax thyrses, 30–75 cm, pink- to purplish-tipped stipitate-glandular; (bracts gradually smaller distally).

Flowers

sepals strongly reflexed, oblong;

petals white, with 2 basal yellow spots that sometimes appear as 1 (sometimes faded in dried material), ± elliptic to spatulate, clawed, 2–3 mm, longer than sepals;

filaments strongly club-shaped;

pistils distinct almost to base;

ovary superior, (to 1/3 adnate to hypanthium).

Capsules

green, sometimes purplish, folliclelike.

2n

= 22.

Micranthes micranthidifolia

Phenology Flowering spring.
Habitat Rocky seepage slopes, stream banks
Elevation 400-2100 m (1300-6900 ft)
Distribution
from FNA
GA; KY; MD; NC; PA; SC; VA; WV
[WildflowerSearch map]
[BONAP county map]
Discussion

Micranthes micranthidifolia was formerly gathered by local people in the southern Appalachians as a spring “green” (hence the common name, “branch” being dialect for a small stream); it is still occasionally seen in local grocery stores.

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

Source FNA vol. 8, p. 60.
Parent taxa Saxifragaceae > Micranthes
Sibling taxa
M. apetala, M. aprica, M. bryophora, M. californica, M. calycina, M. careyana, M. caroliniana, M. eriophora, M. ferruginea, M. foliolosa, M. fragosa, M. gaspensis, M. gormanii, M. hieraciifolia, M. hitchcockiana, M. howellii, M. idahoensis, M. integrifolia, M. lyallii, M. marshallii, M. nelsoniana, M. nidifica, M. nivalis, M. nudicaulis, M. occidentalis, M. odontoloma, M. oregana, M. palmeri, M. pensylvanica, M. petiolaris, M. razshivinii, M. reflexa, M. rhomboidea, M. rufidula, M. spicata, M. stellaris, M. subapetala, M. tempestiva, M. tenuis, M. texana, M. tischii, M. tolmiei, M. unalaschcensis, M. virginiensis
Synonyms Robertsonia micranthidifolia, Aulaxis micranthidifolia, Saxifraga micranthidifolia
Name authority (Haworth) Small: Fl. S.E. U.S., 501, 1331. 1903 ,
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