Clematis texensis

Buckley

Proc. Acad. Nat. Sci. Philadelphia 13: 448. 1862.

Common names: Scarlet clematis crimson clematis
Endemic
Synonyms: Viorna coccinea (A. Gray) Small
Treatment appears in FNA Volume 3.

Stems viny, to 3 m, glabrous or sometimes ± hirsute near nodes. Leaf-blade 1-pinnate; leaflets 6-10 plus additional tendril-like terminal leaflet, ovate to nearly round, unlobed, 2-3-lobed, or most proximal occasionally 3-foliolate, 1-9 × 1-6 cm, leathery, ± prominently reticulate adaxially; surfaces abaxially usually glabrous, occasionally sparsely pubescent, glaucous. Inflorescences axillary, 1-7-flowered. Flowers ovoid to urn-shaped; sepals rose-red to scarlet abaxially and at tip adaxially, ovatelanceolate, 1.5-3 cm, margins not expanded, thick, not crispate, tomentose, tips acute to acuminate, recurved, abaxially glabrous. Achenes: bodies appressed-pubescent; beak 4-7 cm, plumose. 2n = 16.


Phenology: Flowering spring–summer (Mar–Jun).
Habitat: Woodlands, calcareous cliffs, and stream banks
Elevation: 80-700 m

Discussion

Although widely cultivated because it is the only species of Clematis with truly red flowers, C.texensis is native only to the southeastern part of the Edwards Plateau, Texas.

Selected References

None.

Lower Taxa

None.

"appressed-pubescent" is not a number."connivent" is not a number."thick" is not a number.

... more about "Clematis texensis"
flattened +
James S. Pringle +
Buckley +
cuneate +, truncate +  and cordate +
Undefined subg. Viorna +
curved +  and straight +
plumose +
4 cm40 mm <br />0.04 m <br /> (7 cm70 mm <br />0.07 m <br />) +
scale-like;leaflike +
globose;cylindric +
Scarlet clematis +  and crimson clematis +
bracteate +  and 3-7-flowered +
paired +  and solitary +
0 cm0 mm <br />0 m <br /> (15 cm150 mm <br />0.15 m <br />) +
80-700 m +
filiform +  and flattened +
bracteate +  and 3-7-flowered +
paired +  and solitary +
showy +  and inconspicuous +
ovoid +  and urn-shaped +
0 cm0 mm <br />0 m <br /> (15 cm150 mm <br />0.15 m <br />) +
sessile +  and aggregate +
flattened-ellipsoid;terete;flattened-ellipsoid;terete;lenticular +
Woodlands, calcareous cliffs, and stream banks +
cordate +  and orbiculate oblong lanceolate or oblanceolate lobed or unlobed +
2-3-lobed +, unlobed +, ovate +  and nearly round +
palmate +  and pinnate +
not crispate +
not expanded +
1-many-flowered +
0 cm0 mm <br />0 m <br /> (15 cm150 mm <br />0.15 m <br />) +
distinct +
conspicuous +
spurred +, funnel--shaped +, cup-shaped +  and plane +
reduced +
Flowering spring–summer (Mar–Jun). +
5 +  and 150 +
1 cm10 mm <br />0.01 m <br /> (9 cm90 mm <br />0.09 m <br />) +
1 cm10 mm <br />0.01 m <br /> (6 cm60 mm <br />0.06 m <br />) +
Proc. Acad. Nat. Sci. Philadelphia +
not arillate +  and stalked +
rose-red;scarlet +
not persistent +
distinct +
abaxially glabrous +  and silky hirsute or tomentose +
3 +  and 6 +
ovatelanceolate +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
hirsute +  and glabrous +
0 cm0 mm <br />0 m <br /> (300 cm3,000 mm <br />3 m <br />) +
persistent +
glaucous;pubescent;glabrous +
Viorna coccinea +
Clematis texensis +
Clematis subg. Viorna +
species +
acute +  and acuminate +
annual +  and perennial +