Saxifraga vespertina |
Saxifraga mertensiana |
|
---|---|---|
Matted saxifrage, saxifraga vespertina, spotted saxifrage, yellow dot saxifrage |
Merten's or wood or woodland saxifrage, Mertens' saxifrage, wood saxifrage, woodland saxifrage |
|
Habit | Plants forming loose mats, (stems trailing), not stoloniferous, rhizomatous. | Plants solitary or in clumps, not stoloniferous, with caudex or short-rhizomatous. |
Leaves | cauline (crowded proximally); petiole absent; blade spatulate, unlobed or minutely 3-toothed or -lobed apically, 4–11 mm, leathery, margins entire, (not cartilaginous), stiffly ciliate, apex rounded or obtuse, mucronate, surfaces glabrous. |
basal and cauline, (basal persistent, cauline ± inconspicuous); petiole rounded, 2–20 mm; blade round to reniform, irregularly shallowly lobed, 20–80(–100) mm, thin, margins serrate, stipitate glandular-ciliate, apex obtuse to rounded, surfaces sparsely hairy. |
Inflorescences | 3–6-flowered cymes, 2.5–12 cm, pink- to purple-tipped stipitate-glandular; bracts sessile. |
30+-flowered, open, much-branched thyrses, usually some or all flowers replaced by bulbils (sometimes bulbils absent), 15–40 cm, dark purple-tipped stipitate-glandular; bracts (± inconspicuous), petiolate or sessile. |
Flowers | sepals erect, ovate to oblong, margins sparsely ciliate, surfaces glabrous; petals white to cream, yellow-spotted proximally, red- or orange-spotted distally, these often faded in dried specimens, elliptic, 4–6 mm, much longer than sepals; ovary superior. |
sepals reflexed (at least in fruit), ovate to elliptic, margins eciliate, surfaces sparsely stipitate-glandular or glabrous; petals white, not spotted, narrowly ovate to elliptic, (3–)4–6 mm, longer than sepals; filaments strongly club-shaped; ovary superior. |
2n | = 26. |
= 36, ca. 48, 50. |
Saxifraga vespertina |
Saxifraga mertensiana |
|
Phenology | Flowering summer. | Flowering spring–summer. |
Habitat | Rocky slopes, ledges, crevices | Moist to wet stream banks, mossy cliffs and slopes, waterfall spray zones |
Elevation | 100-1800 m (300-5900 ft) | 0-2500 m (0-8200 ft) |
Distribution |
OR; WA
|
AK; CA; ID; MT; OR; WA; AB; BC
|
Discussion | Plants of Saxifraga mertensiana bear bulbils in the axils of basal leaves. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 8, p. 142. | FNA vol. 8, p. 146. |
Parent taxa | Saxifragaceae > Saxifraga | Saxifragaceae > Saxifraga |
Sibling taxa | ||
Synonyms | Leptasea vespertina, S. bronchialis subsp. vespertina, S. bronchialis var. vespertina | S. mertensiana var. eastwoodiae |
Name authority | (Small) Fedde: Just’s Bot. Jahresber. 33(1): 613. (1906) | Bongard: Mém. Acad. Imp. Sci. St.-Pétersbourg, Sér. 6, Sci. Math. 2: 141. 1832 , |
Web links |
|