Linum medium var. texanum

(Planchon) Fernald

Rhodora 37: 428. 1935.

Common names: Texas or sucker flax
Illustrated
Basionym: Linum virginianum var. texanum Planchon London J. Bot. 7: 481. 1848
Synonyms: Cathartolinum curtissii (Small) Small C. medium var. texanum (Planchon) Moldenke L. striatum var. texanum (Planchon) B. Boivin
Treatment appears in FNA Volume 12. Treatment on page 385. Mentioned on page 383, 384.
Revision as of 17:34, 29 July 2020 by imported>Volume Importer
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Leaves relatively thin, ± translucent, apex minutely apiculate. Flowers: inner sepals conspicuously glandular-toothed. 2n = 36.


Phenology: Flowering Mar–Aug.
Habitat: Damp, open, or somewhat shaded places, fields, roadsides.
Elevation: 0–1000 m.

Distribution

V12 953-distribution-map.jpg

Ont., Ala., Ark., Conn., Del., D.C., Fla., Ga., Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Miss., Mo., N.J., N.Y., N.C., Ohio, Okla., Pa., R.I., S.C., Tenn., Tex., Vt., Va., W.Va., Wis., West Indies (Bahamas)

Discussion

Variety texanum can be distinguished from other members of the genus in most of its range by its yellow flowers, distinct styles, and conspicuously glandular-toothed inner sepals. Its capsules also tend to persist longer than those of L. striatum and L. virginianum, in which the capsules shatter early.

Selected References

None.

Lower Taxa

None.

"broader" is not a number."thin" is not a number."wider" is not a number.

... more about "Linum medium var. texanum"
3 cm30 mm <br />0.03 m <br /> (?) +
depressed +, acute +, apiculate +  and obtuse +
Nancy R. Morin +
(Planchon) Fernald +
Linum virginianum var. texanum +
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
glandular-toothed +  and entire +
narrowly lanceolate;oblanceolate +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
0.16 cm1.6 mm <br />0.0016 m <br /> (0.23 cm2.3 mm <br />0.0023 m <br />) +
depressed-globose +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
divided +
Texas or sucker flax +
Ont. +, Ala. +, Ark. +, Conn. +, Del. +, D.C. +, Fla. +, Ga. +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, La. +, Maine +, Md. +, Mass. +, Mich. +, Miss. +, Mo. +, N.J. +, N.Y. +, N.C. +, Ohio +, Okla. +, Pa. +, R.I. +, S.C. +, Tenn. +, Tex. +, Vt. +, Va. +, W.Va. +, Wis. +  and West Indies (Bahamas) +
0–1000 m. +
adnate +  and adherent +
spheric +
Damp, open, or somewhat shaded places, fields, roadsides. +
glandular-toothed +
whorled +, opposite +  and alternate +
not +  and glandular-toothed +
not scarious +
extrastaminal +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
apical-axile +, axile +  and placentation +
not +  and articulated +
0 cm0 mm <br />0 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
convolute +  and imbricate +
adnate +  and adherent +
lemon yellow +
coherent +  and distinct +
obovate +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Flowering Mar–Aug. +
multiporate +  and tricolpate +
opposite +  and alternate +
erect +  and appressed +
mucilaginous +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
lenticular +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
persistent +
lanceolate +
unequal +
Illustrated +
2.5 cm25 mm <br />0.025 m <br /> (?) +
ridged +  and terete +
clavate +, linear +  and capitate +
distinct +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Cathartolinum curtissii +, C. medium var. texanum +  and L. striatum var. texanum +
Linum medium var. texanum +
Linum medium +
variety +
adnate +  and adherent +
annual +  and perennial +
18] +, [15 +  and 13 +