Xylorhiza confertifolia
Brittonia 29: 207. 1977.
Common names: Henrieville woody-aster
EndemicConservation concern
Basionym: Machaeranthera glabriuscula var. confertifolia Cronquist Leafl. W. Bot. 10: 11. 1963
Synonyms: Machaeranthera confertifolia (Cronquist) Cronquist
Subshrubs 10–15 (–23) cm. Stems branched mostly in proximal 3/4 (leaves numerous, crowded, internodes averaging 2–3 mm), finely stipitate-glandular or nearly glabrous. Leaf-blades linear, 1–2.5 mm wide, bases attenuate, not clasping, margins involute, entire, faces puberulent and/or minutely stipitate-glandular. Peduncles 2–14 cm. Involucres 8–12 × 10–16 (–20) mm. Ray-florets 4–14; corollas white. Style-branch appendages ± equal stigmatic lines. 2n = 12.
Phenology: Flowering May–Jul.
Habitat: Barren slopes in alkaline clay, pinyon-juniper
Elevation: 1400–2300 m
Discussion
Of conservation concern.
Xylorhiza confertifolia is known form Garfield and Kane counties.
Selected References
None.
Lower Taxa
None.
... more about "Xylorhiza confertifolia"
introrse +
connate +
distinct +
herbaceous +
scarious +
hirsute +
papillate +
continuous +
not clasping +
attenuate +
1-nerved +
linear;lanceolate or oblanceolate oblong or narrowly elliptic +
ribbed +
stigmatic +
barbellate +
tawny +
persistent +
30;45 +
unequal +
absent +
Henrieville woody-aster +
white +
absent +
monomorphic +
4-ribbed +
dimorphic +
staminate +
Utah. +
straight +
distinct +
proximal +
1;5 +
bisexual +
dispersed +
singly +
indeterminate +
surrounding +
campanulate;hemispheric +
1mm;2.5mm +
alternate +
cauline +
spreading +
triangular +
involute +
scarious +
2-carpellate +
inferior +
attached +
anatropous +
persistent +
tough +
thick +
absent +
connate +
1-nerved +
persistent +
distinct +
falling +
lanceolate +
unequal +
Brittonia +
1977 +
pistillate +
absent +
fertile +
epaleate +
pitted +
concave;usually flat;conic +
fibrous +
exalbuminous +
modifed +
2;3 +
alternate +
branched +
erect +
lanceolate +
2-branched +
glabrous +
Xylorhiza confertifolia +
Xylorhiza +
species +
shorter +
shorter to longer +
perennial +
subshrub +