Juncus capitatus

Weigel

Observ. Bot. 28. 1772.

IntroducedIllustrated
Treatment appears in FNA Volume 22.
Revision as of 23:55, 29 July 2020 by imported>Volume Importer
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Herbs, annual, cespitose, 0.3–1 dm. Culms to 20. Leaves basal; auricles absent; blade 0.5–2.5 cm × 0.5 mm. Inflorescences: glomerules 1–2, each with 2–10 (–14) flowers; bracts subtending inflorescence 1 (–2), foliose, clearly surpassing inflorescence. Flowers: tepals 6, tan to brownish, subulate, lanceolate-ovate, 3.5–4.5 (–5) mm, 2 times length of inner tepals, margins scarious; inner series delicate, shorter, apex acute; stamens 3, filaments 1 mm, anthers 0.5 mm; style 0.4–0.7 mm. Capsules tan to reddish-brown, 3-locular, globose to obovoid, 1.2–1.7 mm, shorter than tepals. Seeds ellipsoid-ovoid, 0.3–0.4 mm. 2n = 18.


Phenology: Flowering and fruiting spring.
Habitat: Moist to wet areas, usually in sandy, often disturbed soil such as roadsides or along trails
Elevation: below 1000 m

Distribution

V22 358-distribution-map.jpg

Introduced; Calif., La., Okla., Tex., native, Africa (north), Europe, Asia (Near East)

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Juncus capitatus"
persistent +
0.5 cm5 mm <br />0.005 m <br /> (?) +
Ralph E. Brooks* +  and Steven E. Clemants* +
Weigel +
0.5 cm5 mm <br />0.005 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
channeled;terete;flat +
0.5 cm5 mm <br />0.005 m <br /> (?) +
tan +  and reddish-brown +
globose;obovoid +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
flattened +  and round +
Calif. +, La. +, Okla. +, Tex. +, native +, Africa (north) +, Europe +  and Asia (Near East) +
below 1000 m +
1 cm10 mm <br />0.01 m <br /> (?) +
arranged +  and cluster +
headlike +
Moist to wet areas, usually in sandy, often disturbed soil such as roadsides or along trails +
pseudoaxillary +  and terminal +
3 +  and 1 +
green;brown or purplish black +
persistent +
Flowering and fruiting spring. +
parietal +  and axile +
Observ. Bot. +
ellipsoid-ovoid +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
green;brown or purplish black +
persistent +
Introduced +  and Illustrated +
generally longer +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (?) +  and 0.07 cm0.7 mm <br />7.0e-4 m <br /> (?) +
Juncus sect. Graminifolii +
Juncus capitatus +
Juncus subg. Graminifolii +
species +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
tan +  and brownish +
2 times length of inner tepals +
lanceolate-ovate +  and subulate +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
herb +  and cespitose +