Mirabilis rotundifolia

(Greene) Standley

Publ. Field Mus. Nat. Hist., Bot. Ser. 8: 305. 1931.

EndemicConservation concern
Basionym: Allionia rotundifolia Greene Pl. Baker. 3: 33. 1901
Treatment appears in FNA Volume 4. Treatment on page 54. Mentioned on page 41, 52.

Stems erect or ascending, 2–3 dm, leafy mostly in proximal 1/2, openly forked distally, spreading-soft hirsute throughout. Leaves usually widely ascending at 60–80°, abruptly reduced below inflorescence; petiole 0–0.9 cm; blade green adaxially, glaucescent abaxially, broadly ovate, ovate-triangular, or round, 4–7 × 3–6 cm, thick, moderately coriaceous, base cordate to round or cuneate, apex obtuse to round, surfaces glabrous or soft hirsute adaxially, soft hirsute abaxially. Inflorescences primarily terminal, few branched, open; peduncle 3–6 mm, spreading-pubescent, sometimes somewhat glandular, crosswalls of hairs pale; involucres grayish green, widely bell-shaped, 4–6 mm in flower, 7–8 mm in fruit, spreading-pubescent, 40–50% connate, lobes ovate. Flowers 3 per involucre; perianth purplish-pink, 0.9–1.1 cm. Fruits pale olive brown, narrowly obovoid, 4–5 mm, ± evenly puberulent with hairs 0.1 mm; ribs round, 0.3–0.5 times width of sulci, 0.5 times as wide as high, slightly rugose (more so on side); sulci slightly darker than ribs, slightly rugose.


Phenology: Flowering late spring-mid summer.
Habitat: Open, calcareous, shaley outcrops
Elevation: 1600-1700 m

Discussion

Of conservation concern.

Mirabilis rotundifolia is clearly closely related to Mirabilis albida and may be only a variant.

Mirabilis rotundifolia is in the Center for Plant Conservation’s National Collection of Endangered Plants.

Selected References

None.

Lower Taxa

None.

"dm" is not declared as a valid unit of measurement for this property.

... more about "Mirabilis rotundifolia"
Richard W. Spellenberg +
(Greene) Standley +
glutinous +
cordate +  and round or cuneate +
constricted +
woody +, leathery +  and fleshy +
Allionia rotundifolia +
glaucescent +
4 cm40 mm <br />0.04 m <br /> (7 cm70 mm <br />0.07 m <br />) +
round;ovate-triangular;round;ovate-triangular;ovate +
thick;3cm;6cm +
persistent +
distinct +, , +  and connate +
corollalike +  and petaloid +
branched +, congested +  and open +
subsessile +  and sessile +
1600-1700 m +
curved +  and straight +
inconspicuous +  and showy +
cleistogamous +, chasmogamous +  and bisexual +
brown +  and pale olive +
obovoid +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Open, calcareous, shaley outcrops +
0.1 cm1 mm <br />0.001 m <br /> (?) +
open +  and branched +
grayish green +
spreading-pubescent +
bell--shaped +
accrescent +
0.7 cm7 mm <br />0.007 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
herbaceous;papery +
sessile +  and petiolate +
reduced +
5-lobed +
pubescent +  and glabrous +
entire +  and crisped +
spreading-pubescent +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
chasmogamous +  and cleistogamous +
5-lobed +  and flared +
constricted +
0.9 cm9 mm <br />0.009 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
0 cm0 mm <br />0 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Flowering late spring-mid summer. +
Publ. Field Mus. Nat. Hist., Bot. Ser. +
not evident +  and defined +
pubescent +  and glabrous +
tuberculate +  and smooth +
0.3-0.5 times width of sulci +
0.5 times as wide as high slightly rugose +
thick +  and thin +
cordlike +  and cylindric +
membranaceous +
ribbed +, 10-ribbed +  and 5-ribbed +
pubescent +, glabrous +  and warty +
wrinkled +
Endemic +  and Conservation concern +
ascending +  and erect +
fusiform +  and linear +
filiform +
slightly darker +
mucilaginous +
hirsute +, soft +  and glabrous +
slightly rugose +  and prominently tuberculate +
ropelike +  and swollen +
Mirabilis rotundifolia +
Mirabilis sect. Oxybaphus +
species +
gland-tipped +
expanded +
pubescent +  and glabrous +