Juncus hemiendytus var. abjectus

(F. J. Hermann) Ertter

Memoirs of the New York Botanical Garden 39: 76. 1986.

Common names: Least dwarf rush
Endemic
Basionym: Juncus abjectus Leafl. W. Bot. 5: 120. 1948
Treatment appears in FNA Volume 22.

Culms dilated directly proximal to flower, 0.2–0.5 mm diam. Inflorescences: bracts not subtending inflorescence. Capsules usually not exceeding tepals.


Phenology: Flowering and fruiting spring–mid summer.
Habitat: Various damp open habitats including vernal depressions, streambeds, swales in sagebrush flats, forest clearing and alpine meadows
Elevation: 1400–3400 m

Distribution

V22 236-distribution-map.jpg

Calif., Idaho, Nev., Oreg.

Discussion

Selected References

None.

Lower Taxa

None.
persistent +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
rounded +  and acute +
Ralph E. Brooks* +  and Steven E. Clemants* +
(F. J. Hermann) Ertter +
Juncus abjectus +
channeled;terete;flat +
0.19 cm1.9 mm <br />0.0019 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
obovoid;ellipsoid or oblate +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Least dwarf rush +
0.2mm;0.5mm +
dilated +
Calif. +, Idaho +, Nev. +  and Oreg. +
1400–3400 m +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
arranged +  and cluster +
headlike +
Various damp open habitats including vernal depressions, streambeds, swales in sagebrush flats, forest clearing and alpine meadows +
pseudoaxillary +  and terminal +
1/2 height of plant;1-1/3 height of plant +
cauline +  and basal +
3 +  and 1 +
green;brown or purplish black +
persistent +
Flowering and fruiting spring–mid summer. +
parietal +  and axile +
Memoirs of the New York Botanical Garden +
ovoid;oblate +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.055 cm0.55 mm <br />5.5e-4 m <br />) +
green;brown or purplish black +
persistent +
generally longer +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (?) +  and 0.04 cm0.4 mm <br />4.0e-4 m <br /> (?) +
Juncus brachystylus +, Juncus brachystylus var. uniflorus +  and Juncus triformis var. uniflorus +
Juncus hemiendytus var. abjectus +
Juncus hemiendytus +
variety +
1.5mm;3mm +
erect;recurved +
0.5mm;1.2mm +
herb +  and cespitose +