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

tiny swamp saxifrage, western swamp saxifrage

Habit Plants solitary or in clusters, with bulbils on caudices, or short-rhizomatous. Plants solitary or tufted, short, thick-rhizomatous.
Leaves

basal;

petiole flattened, 0.5–3 cm;

blade ± ovate, 2–5 cm, ± fleshy, base attenuate, margins entire or crenulate, eciliate, surfaces hairy.

basal;

petiole rounded, 4–15 cm;

blade round, ovate, or reniform, 3–15 cm, thin, base cordate, margins serrate to dentate, ciliate, surfaces hairy to glabrate.

Inflorescences

10–25-flowered, congested, glomerate thyrses, 4–15 cm, pink- to purple-tipped stipitate-glandular (hairs uniseriate).

15+-flowered, congested, spikelike thyrses, 15–50(–70) cm, tangled, pink- to purple-tipped stipitate-glandular.

Flowers

sepals erect to ascending, ovate;

petals absent, sometimes 1–5, white to greenish white, not spotted, linear to oblong, clawed, 1–2 mm, much shorter than sepals;

filaments linear, flattened;

pistils connate to 1/2 their lengths;

ovary 1/2+ inferior.

sepals reflexed, oblong to ovate;

petals cream to yellowish, not spotted, oblong, not clawed, 3–4.5 mm, longer than sepals;

filaments narrowly club-shaped;

pistils connate at least 1/2 their lengths;

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

Capsules

reddish or purplish, folliclelike.

green, purplish tinged, ± folliclelike, (basally connate).

2n

= 38.

Micranthes apetala

Micranthes spicata

Phenology Flowering early spring–summer. Flowering summer.
Habitat Vernally moist meadows, wet depressions on mountain slopes Wet tundra, heaths, moist, rocky areas, streamsides
Elevation 600-2800 m (2000-9200 ft) 0-1700 m (0-5600 ft)
Distribution
from FNA
ID; MT; OR; WA
[WildflowerSearch map]
[BONAP county map]
from FNA
AK; YT
[BONAP county map]
Source FNA vol. 8, p. 68. FNA vol. 8, p. 57.
Parent taxa Saxifragaceae > Micranthes Saxifragaceae > Micranthes
Sibling taxa
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. micranthidifolia, 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
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. micranthidifolia, 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. stellaris, M. subapetala, M. tempestiva, M. tenuis, M. texana, M. tischii, M. tolmiei, M. unalaschcensis, M. virginiensis
Synonyms Saxifraga apetala, Saxifraga integrifolia var. apetala Saxifraga spicata
Name authority (Piper) Small: in N. L. Britton et al., N. Amer. Fl. 22: 135. 1905 , (D. Don) Small: in N. L. Britton et al., N. Amer. Fl. 22: 146. (1905)
Web links