Cassiope mertensiana |
Cassiope |
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Mertens' moss-heather, Mertens' mountain-heather, western bell heather, western moss heather, white heather, white moss-heather, White Mountain-heather |
moss-heather, mountain-heather, white heather |
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Stems | spreading or ascending to erect, forming dense mats, puberulent, glandular-hairy, or glabrous. |
decumbent to prostrate, spreading, ascending, or erect, mat-forming, glabrous or hairy. |
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Leaves | imbricate, somewhat appressed to leaf above, usually 4-ranked; blade ovate-lanceolate, abaxial groove absent, 3–4.5 × 1–1.5 mm, margins thin but not scarious, without curled hairs at leaf tips, surfaces glabrous to glandular-hairy or sparsely hairy. |
blade canoe-shaped, without abaxial groove, or dorsiventrally expanded by marginal outgrowths forming abaxial groove, margins entire, thin or scarious, surfaces glabrous or glandular or hairy. |
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Pedicels | erect with deflexed tip at anthesis, elongating (or not) and straight in fruit; bracteoles absent. |
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Flowers | sepals 2–3 mm, margins entire or erose; petals connate to 1/3 their lengths, tips recurved, corolla white, campanulate, 5–8 mm; stamens to 3 mm. |
sepals ± distinct, oblong-ovate; filaments not enlarged at base; anthers with awns; ovary subglobose to ovoid; style cylindric; stigma capitate. |
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Capsules | 1.5–4 mm. |
borne on erect pedicels, subglobose to ovoid. |
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x | = 13. |
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Cassiope mertensiana |
Cassiope |
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Distribution |
AK; CA; ID; MT; NV; OR; WA; AB; BC
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North America; n Europe; Asia |
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Discussion | Subspecies 4 (4 in the flora). Four subspecies were recognized by Piper, based on differences in pubescence of the stems and leaf margins. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Species 18 (3 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 8, p. 447. | FNA vol. 8, p. 446. | ||||||||||||||||||||
Parent taxa | Ericaceae > subfam. Cassiopoideae > Cassiope | Ericaceae > subfam. Cassiopoideae | ||||||||||||||||||||
Sibling taxa | ||||||||||||||||||||||
Subordinate taxa | ||||||||||||||||||||||
Synonyms | Andromeda mertensiana | |||||||||||||||||||||
Name authority | (Bongard) G. Don: Gen. Hist. 3: 829. (1834) | D. Don: Edinburgh New Philos. J. 17: 157. 1834 , | ||||||||||||||||||||
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