Saxifraga aleutica |
Saxifraga rivularis |
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Aleut saxifrage, Aleutian saxifrage |
alpine-brook saxifrage, weak saxifrage |
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Habit | Plants mat-forming, not stoloniferous, rhizomatous. | Plants (delicate), loosely tufted or matted, (green to purple), stoloniferous, weakly rhizomatous, (with bulbils in axils of basal leaves). | ||||
Leaves | basal and cauline, (basal crowded, cauline 1–2); petiole absent; blade oblanceolate to spatulate, unlobed, 3–6 mm, fleshy, margins entire, eciliate, apex obtuse, surfaces glabrous. |
basal and cauline; petiole ± flattened, 2–30(–50) mm; blade reniform, 3–5(–7)-lobed (lobes rounded, sometimes ± obtuse, distalmost unlobed), (2.6–)3.7–5.2(–7.4) mm, slightly fleshy, margins entire, eciliate or sparsely glandular-ciliate, without lime-secreting hydathodes (with nonsecreting hydathodes at lobe apices), apex acute, surfaces glabrous. |
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Inflorescences | solitary flowers, 0.5–2 cm, densely pink- to purple-tipped stipitate-glandular; bracts sessile. |
2–3(–5)-flowered cymes, sometimes solitary flowers, (flowers pedicellate), 1.7–7 cm, glabrous or sparsely to ± densely tangled, pink-tipped stipitate-glandular; bracts (2–3), petiolate, (unlobed or 1–3-lobed, reduced). |
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Flowers | sepals reflexed, oblong to ovate or triangular, margins stipitate-glandular, surfaces glabrous; petals greenish yellow, not spotted, elliptic to narrowly obovate, 2–3 mm, ± equaling sepals; ovary superior. |
(hypanthium U-shaped in longisection); sepals erect, (sometimes rusty brown), elliptic to ovate, margins eciliate or sparsely glandular-ciliate, glabrous or sparsely to densely stipitate-glandular; petals white, sometimes pink tinged, not spotted, oblong to elliptic, 2–6 mm, to 2–3 times length of sepals; ovary 1/2 inferior. |
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Saxifraga aleutica |
Saxifraga rivularis |
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Phenology | Flowering summer. | |||||
Habitat | Gravelly areas, hill and mountain tops | |||||
Elevation | 200-1200 m (700-3900 ft) | |||||
Distribution |
AK |
AK; NH; NU; QC; n Eurasia
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Discussion | Saxifraga aleutica is found on the Aleutian Islands. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Subspecies 2 (2 in the flora). Some reports of Saxifraga sibirica Linnaeus from Canada are misidentifications of this species. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 8, p. 140. | FNA vol. 8, p. 144. | ||||
Parent taxa | ||||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Name authority | Hultén: Svensk Bot. Tidskr. 30: 522, fig. 4. 1936 , | Linnaeus: Sp. Pl. 1: 404. (1753) | ||||
Web links |