Saxifraga vespertina |
Saxifraga adscendens |
|
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Matted saxifrage, saxifraga vespertina, spotted saxifrage, yellow dot saxifrage |
ascending saxifrage, rock saxifrage, wedge-leaf saxifrage |
|
Habit | Plants forming loose mats, (stems trailing), not stoloniferous, rhizomatous. | Plants biennial, sometimes behaving as winter annual, solitary or tufted, not stoloniferous, with caudex. |
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, compact); petiole absent (cuneate base ± petiolelike); blade oblanceolate to obovate, (2–)3(–5)-toothed or shallowly lobed apically, rarely unlobed (distal often so), (lobes forwardly directed), (2–)4–15 mm, slightly fleshy, margins entire, stipitate glandular-ciliate, apex obtuse, surfaces glabrate to stipitate-glandular. |
Inflorescences | 3–6-flowered cymes, 2.5–12 cm, pink- to purple-tipped stipitate-glandular; bracts sessile. |
(2–)6–15(–40)-flowered thyrses, (1–)4–25 cm, densely purple-tipped stipitate-glandular; bracts 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 erect, (usually reddish purple), ovate or triangular to oblong, margins stipitate glandular-ciliate, surfaces stipitate-glandular; petals white, not spotted, obovate to oblanceolate, (2–)3–6 mm, equaling or longer than sepals; ovary inferior. |
2n | = 26. |
= 22. |
Saxifraga vespertina |
Saxifraga adscendens |
|
Phenology | Flowering summer. | Flowering summer. |
Habitat | Rocky slopes, ledges, crevices | Moist, often shaded cliff ledges, screes, talus slopes, gravelly stream banks, gravelly alpine meadows |
Elevation | 100-1800 m (300-5900 ft) | 1200-4200 m (3900-13800 ft) |
Distribution |
OR; WA
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AK; CO; ID; MT; NV; OR; UT; WA; WY; AB; BC; NT; YT; Europe
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Discussion | Although the North American plants of Saxifraga adscendens have been known as subsp. oregonensis, expressions of the supposed distinguishing characters appear to overlap completely with the variation found in Europe. The plants produce bulbils on caudices. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 8, p. 142. | FNA vol. 8, p. 145. |
Parent taxa | Saxifragaceae > Saxifraga | Saxifragaceae > Saxifraga |
Sibling taxa | ||
Synonyms | Leptasea vespertina, S. bronchialis subsp. vespertina, S. bronchialis var. vespertina | Muscaria adscendens, S. adscendens subsp. oregonensis, S. adscendens var. oregonensis, S. oregonensis |
Name authority | (Small) Fedde: Just’s Bot. Jahresber. 33(1): 613. (1906) | Linnaeus: Sp. Pl. 1: 405. 1753 , |
Web links |