Bulbostylis juncoides

(Vahl) Kükenthal ex Osten

Anales Mus. Hist. Nat. Montevideo, ser. 2, 3: 187. 1931.

Illustrated
Basionym: Schoenus juncoides Vahl Enum. Pl. 2: 211. 1805
Synonyms: Bulbostylis arenaria (Nees) Lindman Bulbostylis argentina Palla Bulbostylis langsdorffiana (Kunth) C. B. Clarke Fimbristylis capillaris var. pilosa Britton Fimbristylis juncoides (Vahl) Alain Fimbristylis savannarum Alain Oncostylis arenaria Nees Oncostylis tenuifolia var. hirta Liebmann Oncostylis tenuifolia var. nana Liebmann Scirpus lorentzii
Treatment appears in FNA Volume 23. Treatment on page 135. Mentioned on page 132, 136.

Herbs, perennial, densely cespitose. Culms 10–30 (–40) cm, bases hard, swollen. Leaves ¼–1/2 length of scapes; sheaths brown to stramineous, abaxially glabrous or hirtellous; blades spreading to erect, filiform, wiry, less than 1 mm wide, involute, margins and adaxial surface glabrous to hispidulous or scabrid. Inflorescences terminal, mostly in compound, compact or diffuse, involucrate anthelae; scapes ascending to erect, wiry, 1 mm thick, coarsely ribbed, ribs glabrous or hispidulous to scabrid; proximal bladed involucral-bract exceeding or exceeded by inflorescence. Spikelets redbrown to chestnut-brown, lanceoloid to cylindric, 4–6 mm, mostly longer than broad; fertile scales ovate, curvate-keeled, 2–2.5 mm, apex acute, glabrous or papillose-puberulent, midrib excurrent as mucro or mucronula. Flowers: stamens 3; anthers linear, 1–2 mm. Achenes gray to yellowbrown or dark-brown, trigonousobovoid, 1–1.2 (–1.5) mm, faces rugulose, papillate; tubercle a globose button. 2n = 60.


Phenology: Fruiting all year.
Habitat: Savanna, prairie, steppes, basic and acidic rock outcrops, mostly higher elevations
Elevation: 100–3000 m

Distribution

V23 214-distribution-map.jpg

Ariz., N.Mex., Tex., Mexico, West Indies, Central America, South America

Discussion

Bulbostylis juncoides is unquestionably the most polymorphic species of its complex in Bulbostylis and with a potential synonymy more elaborate than given here.

Selected References

None.

Lower Taxa

None.
... more about "Bulbostylis juncoides"
0.12 cm1.2 mm <br />0.0012 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
gray +  and yellowbrown or dark-brown +
biconvex;3-lobed;trigonous +
glabrous +  and hispidulous or scabrid +
involucrate +  and compound +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
papillose-puberulent +  and glabrous +
Robert Kral +
(Vahl) Kükenthal ex Osten +
shortened +
persistent +
swollen +
enlarged +
Schoenus juncoides +
usually longer +
filiform +
0mm;1mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
parallel +  and divergent +
terete +, rolled +  and plicate +
10 cm100 mm <br />0.1 m <br /> (30 cm300 mm <br />0.3 m <br />) +
Ariz. +, N.Mex. +, Tex. +, Mexico +, West Indies +, Central America +  and South America +
100–3000 m +
papillate +  and rugulose +
hypogynous +  and subtending +
biconvex +  and trigonous +
Savanna, prairie, steppes, basic and acidic rock outcrops, mostly higher elevations +
compound +  and simple +
erect +  and spreading +
polystichous +
1/2 length of scapes +
glabrous +  and hispidulous or scabrid +
with (1-)3-6(-30) bristles and/or scales +
Fruiting all year. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
exceeded by inflorescence +  and exceeding +
Anales Mus. Hist. Nat. Montevideo, ser. +
hispidulous +  and scabrid +
adventitious +
distichous +  and arranged +
basal +  and proximal +
curvate-keeled;ovate +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
ascending;erect +
1 cm10 mm <br />0.01 m <br /> (?) +
hirtellous +  and glabrous +
cylindric +
Illustrated +
redbrown +  and chestnut-brown +
mostly longer than broad +
1 +  and 50 +
lanceoloid;cylindric +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
(2-)3-fid +
slender +
Bulbostylis arenaria +, Bulbostylis argentina +, Bulbostylis langsdorffiana +, Fimbristylis capillaris var. pilosa +, Fimbristylis juncoides +, Fimbristylis savannarum +, Oncostylis arenaria +, Oncostylis tenuifolia var. hirta +, Oncostylis tenuifolia var. nana +  and Scirpus lorentzii +
Bulbostylis juncoides +
Bulbostylis +
species +
button +  and globose +
not rhizomatous +  and scapose +
herb +  and cespitose +