Difference between revisions of "Epilobium hornemannii subsp. hornemannii"
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| − | |hierarchy=Onagraceae;Onagraceae subfam. Onagroideae;Epilobium;Epilobium sect. Epilobium;Epilobium hornemannii;Epilobium hornemannii subsp. hornemannii | + | |hierarchy=Onagraceae;Onagraceae subfam. Onagroideae;Onagraceae tribe Epilobieae;Epilobium;Epilobium sect. Epilobium;Epilobium hornemannii;Epilobium hornemannii subsp. hornemannii |
| − | |hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Onagraceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Onagraceae subfam. Onagroideae]]</div><div class="higher-taxon"><small>genus</small>[[Epilobium]]</div><div class="higher-taxon"><small>section</small>[[Epilobium sect. Epilobium]]</div><div class="higher-taxon"><small>species</small>[[Epilobium hornemannii]]</div><div class="higher-taxon"><small>subspecies</small>[[Epilobium hornemannii subsp. hornemannii]]</div></div> | + | |hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Onagraceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Onagraceae subfam. Onagroideae]]</div><div class="higher-taxon"><small>tribe</small>[[Onagraceae tribe Epilobieae]]</div><div class="higher-taxon"><small>genus</small>[[Epilobium]]</div><div class="higher-taxon"><small>section</small>[[Epilobium sect. Epilobium]]</div><div class="higher-taxon"><small>species</small>[[Epilobium hornemannii]]</div><div class="higher-taxon"><small>subspecies</small>[[Epilobium hornemannii subsp. hornemannii]]</div></div> |
|volume=Volume 10 | |volume=Volume 10 | ||
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| − | |source xml=https://xjsachs2@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://xjsachs2@bitbucket.org/aafc-mbb/fna-data-curation.git/src/e39f0e846f172941159b2045254d62d10d9823f6/coarse_grained_fna_xml/V10/V10_323.xml |
|subfamily=Onagraceae subfam. Onagroideae | |subfamily=Onagraceae subfam. Onagroideae | ||
| + | |tribe=Onagraceae tribe Epilobieae | ||
|genus=Epilobium | |genus=Epilobium | ||
|section=Epilobium sect. Epilobium | |section=Epilobium sect. Epilobium | ||
Latest revision as of 10:32, 9 May 2022
Leaves not coriaceous, petiole 3–7 mm proximally; cauline blade 1.5–5.5 × 0.7–2.9 cm. Flowers: sepals sometimes red-tipped, 2–4.5 × 1–2.2 mm; petals usually rose-purple to light pink, rarely white, 3–9 × 2–5.5 mm. Capsules 40–65 mm. Seeds 0.9–1.2 × 0.3–0.5 mm, surfaces distinctly papillose. 2n = 36.
Phenology: Flowering (May–)Jun–Aug.
Habitat: Banks of montane to alpine streams and lakes, open tussock meadows, willow swales, gravelly ridges, stabilized scree slopes, roadside ditches.
Elevation: 50–3700 m.
Distribution
Greenland, Alta., B.C., N.B., Nfld. and Labr. (Nfld.), N.W.T., N.S., Nunavut, Ont., Que., Yukon, Alaska, Ariz., Calif., Colo., Idaho, Maine, Mont., Nev., N.H., N.Mex., N.Y., Oreg., S.Dak., Utah, Wash., Wyo., n Eurasia.
Discussion
Subspecies hornemannii is one of the more common and widely distributed members of the Alpinae alliance and carries the CC chromosomal arrangement. It grows from near sea level in the north (Alaska, Northwest Territories) to high alpine (to 3700 m) in the southern Rockies and Sierra Nevada; it also occurs in northern Europe, subarctic and Russian Far East, and Japan. In Nunuvut, it is found only on Charlton Island in James Bay. It often grows sympatrically with E. ciliatum and Epilobium saximontanum (both AA arrangement); occasional hybrids are found, but they often have much reduced seed fertility, probably due to chromosomal irregularities.
Subspecies hornemannii occurs occasionally in spring pools, forming distinctive dense floating mats of ascending stems. Specimens growing in very moist habitats often have pale, thin epigeal stolons with scales, rather than typical leafy soboles.
Selected References
None.