Difference between revisions of "Trillium nivale"
Syn. Fl. West. States, 93. 1835.
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|elevation=100–300 m | |elevation=100–300 m | ||
|distribution=Ill.;Ind.;Iowa;Ky.;Md.;Mich.;Minn.;Mo.;Nebr.;Ohio;Pa.;S.Dak.;W.Va.;Wis. | |distribution=Ill.;Ind.;Iowa;Ky.;Md.;Mich.;Minn.;Mo.;Nebr.;Ohio;Pa.;S.Dak.;W.Va.;Wis. | ||
− | |discussion=<p>Trillium nivale occurs primarily at the southern edge of Pleistocene glaciation and shuns humus, leaf deposits, and much plant competition.</p> | + | |discussion=<p><i>Trillium nivale</i> occurs primarily at the southern edge of Pleistocene glaciation and shuns humus, leaf deposits, and much plant competition.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year=1835 | |publication year=1835 | ||
|special status= | |special status= | ||
− | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V26/V26_104.xml |
|genus=Trillium | |genus=Trillium | ||
|subgenus=Trillium subg. Trillium | |subgenus=Trillium subg. Trillium |
Revision as of 17:40, 18 September 2019
Rhizomes short, praemorse. Scapes usually 1, 6-gonal in cross section, 0.3–0.5 dm at onset of anthesis, expanding to 0.45–0.8 dm, slender, glabrous. Bracts distinctly petiolate; blade bluish green, elliptic-ovate to ovate, 1.5–4.5 cm × 0.7–34 mm, base abruptly rounded to petiole, apex round-obtuse. Flower erect, fragrance sweet; sepals spreading, flat, bluish green, lanceolate, 10–32 × 2–7 mm, shorter than petals, margins entire, apex obtuse; petals very showy, recurved to erect-spreading, white, veins not engraved on adaxial surface, ovate-elliptic to oblong, 1.5–3.5+ × 0.8–1.5 cm, thin- to firm-textured, margins entire to slightly wavy, apex obtuse-acuminate; stamens straight, 5–18 mm; filaments white, slightly shorter than anthers, slender; anthers straight, pale yellow, 2.5–11 mm, thin, dehiscence introrse; ovary greenish white, ± globular, obtusely 3-angled; style with tips spreading, elongate, 0.5–1.5 mm, slender; stigmas prominent, recurved or curled, connate basally, white, linear, threadlike, 4–12+ mm; pedicel erect in anthesis, rapidly recurving below leaves after pollination, 5–20 cm. Fruits greenish white, odorless, globose-ovate, 0.6–1 × 0.5–0.8 cm, pulpy, not juicy. 2n = 10.
Phenology: Flowering spring (early Mar–early Apr).
Habitat: Forested, limestone-derived soils, alkaline glacial drift or loess, creeping soils at head of ledges, talus of cliff bases, crevices in limestone cliffs, gravelly deposits on higher floodplain riverbanks
Elevation: 100–300 m
Distribution
![V26 104-distribution-map.jpg](/w/images/e/e9/V26_104-distribution-map.jpg)
Ill., Ind., Iowa, Ky., Md., Mich., Minn., Mo., Nebr., Ohio, Pa., S.Dak., W.Va., Wis.
Discussion
Trillium nivale occurs primarily at the southern edge of Pleistocene glaciation and shuns humus, leaf deposits, and much plant competition.
Selected References
None.