Difference between revisions of "Linum imbricatum"

(Rafinesque) Shinners

Field & Lab. 25: 32. 1957.

Common names: Tufted flax
Endemic
Basionym: Nezera imbricata Rafinesque New Fl. 4: 66. 1838
Treatment appears in FNA Volume 12. Treatment on page 387. Mentioned on page 379.
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|basionyms={{Treatment/ID/Basionym
 
|name=Nezera imbricata
 
|name=Nezera imbricata
 
|authority=Rafinesque
 
|authority=Rafinesque
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|rank=species
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|publication_title=New Fl.
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|publication_place=4: 66. 1838
 
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|elevation=0–400 m.
 
|elevation=0–400 m.
 
|distribution=La.;Okla.;Tex.
 
|distribution=La.;Okla.;Tex.
|discussion=<p>Linum imbricatum stamens have red filaments and yellow pollen and anthers, a very showy combination against the broadly bowl-shaped, butter yellow corollas often with a broad, wine red base. The stems are terete proximally and strongly ribbed distally; the sepals persist even in fruit. Linum imbricatum occurs in southern Oklahoma, is scattered in Texas, and is known from one report from Acadia Parish, Louisiana.</p>
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|discussion=<p><i>Linum imbricatum</i> stamens have red filaments and yellow pollen and anthers, a very showy combination against the broadly bowl-shaped, butter yellow corollas often with a broad, wine red base. The stems are terete proximally and strongly ribbed distally; the sepals persist even in fruit. <i>Linum imbricatum</i> occurs in southern Oklahoma, is scattered in Texas, and is known from one report from Acadia Parish, Louisiana.</p>
 
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name=Linum imbricatum
 
name=Linum imbricatum
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|authority=(Rafinesque) Shinners
 
|authority=(Rafinesque) Shinners
 
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|publication year=1957
 
|publication year=1957
 
|special status=Endemic
 
|special status=Endemic
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V12/V12_178.xml
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|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V12/V12_178.xml
 
|genus=Linum
 
|genus=Linum
 
|section=Linum sect. Linopsis
 
|section=Linum sect. Linopsis

Latest revision as of 20:13, 5 November 2020

Herbs, annual, 3–30 cm, glabrous proximally, conspicuously short hirsute distally with stout-based hairs. Stems spreading to ascending or erect, branched from base. Leaves: proximalmost opposite, middle and distal alternate, closely imbricate, proximal leaves spreading-ascending, distal strongly appressed; stipular glands absent; blade linear-lanceolate, 5–9 × 0.5–1.2 mm, margins entire, distal leaves sparsely ciliate, apex short-awned; midrib cartilaginous. Inflorescences panicles; bracts ciliate. Pedicels 2–11 mm. Flowers: sepals persistent, ovate, 4.2–6.1 mm, margins broad, purplish, scarious, prominently toothed distally, not glandular-toothed, apex conspicuously awn-shaped; petals yellow, with or without dark red base, obovate, 6.5–8 mm; stamens 5 mm; anthers 0.6–1.2 mm; staminodia absent; styles connate to within 0.3–0.8 mm of apex, 2–4.3 mm; stigmas capitate. Capsules broadly ovoid, 2.6–3 × 2.9–3.3 mm, apex rounded, dehiscing into 5, 2-seeded segments, segments persistent on plant, false septa hyaline, with cartilaginous portion conspicuously broader near base, proximal margin appressed-pilose, otherwise glabrous. Seeds 2–2.6 × 1.1–1.5 mm. 2n = 30.


Phenology: Flowering Apr–May.
Habitat: Sandy or rocky open ground.
Elevation: 0–400 m.

Discussion

Linum imbricatum stamens have red filaments and yellow pollen and anthers, a very showy combination against the broadly bowl-shaped, butter yellow corollas often with a broad, wine red base. The stems are terete proximally and strongly ribbed distally; the sepals persist even in fruit. Linum imbricatum occurs in southern Oklahoma, is scattered in Texas, and is known from one report from Acadia Parish, Louisiana.

Selected References

None.

Lower Taxa

None.