Tetraneuris scaposa var. scaposa

Illustrated
Synonyms: Hymenoxys glabra (Nuttall) Shinners Hymenoxys scaposa var. linearis Shinners Hymenoxys scaposa var. villosa (Nuttall) K. F. Parker Tetraneuris angustata Rydberg Tetraneuris angustifolia Greene Tetraneuris fastigiata (Nuttall) Greene Tetraneuris glabra (Nuttall) Greene Tetraneuris linearis Rydberg Tetraneuris scaposa var. linearis (Shinners) Shinners Tetraneuris scaposa var. villosa Tetraneuris stenophylla
Treatment appears in FNA Volume 21. Treatment on page 449.

Plants 14–40+ cm. Stems 1–30 (–50), not densely woolly among proximal leaves. Leaves crowded (internodes not evident), blades linear, linear-oblanceolate, oblanceolate, or spatulate, usually densely glanddotted. Involucres 5–10 × 7–12 mm. Ray corollas 9.5–22 mm. Disc corollas 2.8–3.5 mm. 2n = 30, 60.


Phenology: Flowering (Jan–)Mar–Jun(–Dec).
Habitat: Roadsides, hillsides, pastures, open areas, edges of woods
Elevation: 300–2400 m

Distribution

V21-1125-distribution-map.gif

Colo., Kans., Nebr., N.Mex., Okla., Tex., Mexico (Chihuahua), Mexico (Coahuila), Mexico (Nuevo León), Mexico (San Luis Potosí), Mexico (Tamaulipas), Mexico (Zacatecas)

Discussion

Selected References

None.

Lower Taxa

None.

not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
paniculiform +  and corymbiform +
indeterminate +  and determinate +
Mark W. Bierner +  and Billie L. Turner +
(de Candolle) Greene +
decurrent +
Cephalophora scaposa +
compound +  and simple +
spatulate;oblanceolate;spatulate;oblanceolate;linear-oblanceolate;linear +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
obpyramidal +
fertile +  and bisexual +
0.28 cm2.8 mm <br />0.0028 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
fertile +  and bisexual +
Colo. +, Kans. +, Nebr. +, N.Mex. +, Okla. +, Tex. +, Mexico (Chihuahua) +, Mexico (Coahuila) +, Mexico (Nuevo León) +, Mexico (San Luis Potosí) +, Mexico (Tamaulipas) +  and Mexico (Zacatecas) +
300–2400 m +
more or less +  and eglandular +
hairy +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Roadsides, hillsides, pastures, open areas, edges of woods +
discoid +  and radiate +
in fastigiate arrays +  and singly +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.6 cm6 mm <br />0.006 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
hemispheric;campanulate +
0.7 cm7 mm <br />0.007 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
sessile +  and petiolate +
basal-proximal +
deltate +
dentate to pinnatifid or palmatifid +  and entire +
0mm +  and 0.2mm +
connate +  and distinct +
ovate +, oblong +, oblanceolate +, linear +, lanceolate +  and elliptic +
unequal +  and subequal +
0.38 cm3.8 mm <br />0.0038 m <br /> (0.66 cm6.6 mm <br />0.0066 m <br />) +
2-carpellate +
persistent +
12 cm120 mm <br />0.12 m <br /> (40 cm400 mm <br />0.4 m <br />) +
Flowering (Jan–)Mar–Jun(–Dec). +
11 +  and 60 +
0.95 cm9.5 mm <br />0.0095 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
bearing subulate enations +, hairy +  and bristly +
hemispheric;conic +
5 +  and 7 +
aristate +, obovate +  and oblanceolate +
0.16 cm1.6 mm <br />0.0016 m <br /> (0.23 cm2.3 mm <br />0.0023 m <br />) +
exalbuminous +
Illustrated +
1 +  and 30 +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Hymenoxys glabra +, Hymenoxys scaposa var. linearis +, Hymenoxys scaposa var. villosa +, Tetraneuris angustata +, Tetraneuris angustifolia +, Tetraneuris fastigiata +, Tetraneuris glabra +, Tetraneuris linearis +, Tetraneuris scaposa var. linearis +, Tetraneuris scaposa var. villosa +  and Tetraneuris stenophylla +
Tetraneuris scaposa var. scaposa +
Tetraneuris scaposa +
variety +
urceolate +  and campanulate +
dilated +
14 cm140 mm <br />0.14 m <br /> (40 cm400 mm <br />0.4 m <br />) +