Manfreda longiflora

(Rose) Verhoek

Baileya 19: 163. 1975.

Common names: Huaco Runyon’s huaco
Conservation concern
Basionym: Runyonia longiflora Rose Addisonia 7: 39, plate 244. 1922
Synonyms: Agave longiflora (Rose) G. D. Rowley Polianthes runyonii Shinners
Treatment appears in FNA Volume 26. Treatment on page 465. Mentioned on page 463.

Rhizomes cylindrical. Leaves spreading, succulent, to 26.5 × 1.4 cm; blade green with darker green or brown narrowly elongate spots, channeled, lanceolate, margins with coarse, distantly spaced, cartilaginous teeth. Scape to 3 dm (–6 dm in cultivation). Inflorescences dense or lax, 0.8–2 (–3.5) dm, 10–21-flowered. Flowers semierect, sessile; tepals white, maturing to rose; perianth-tube narrowly funnelform, 2.3–3.6 cm; limb lobes recurved, 0.8–1.9 × 0.2–0.35 cm; filaments included, attached at top of tube; anthers nearly sessile; ovary 4–6 mm; style included, 1.4–2.8 cm; stigma white, deeply 3-lobed, lobes reflexed. Capsules depressed-globose, 1 × 1–1.3 cm. 2n = 60.


Phenology: Flowering late summer–early fall.
Habitat: Clay slopes, dry gravelly hills or sandy prairies
Elevation: 0–100 m

Discussion

Of conservation concern.

Selected References

None.

Lower Taxa

None.

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

... more about "Manfreda longiflora"
longitudinal +
glandular-pubescent +  and glandular +
Susan Verhoek +
(Rose) Verhoek +
membranous +
Runyonia longiflora +
lanceolate +  and channeled +
fibrous +, succulent +  and rigid +
reflexed +, erect +  and ascending +
scale-like +
straight +
1 cm10 mm <br />0.01 m <br /> (?) +
depressed-globose +
1 cm10 mm <br />0.01 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
Huaco +  and Runyon’s huaco +
Tex. +  and Mexico (Tamaulipas) +
0–100 m +
pubescent +  and glabrous +
broadened +
unisexual +  and bisexual +
loculicidal +
globose +  and cylindrical +
fleshy +  and dry +
Clay slopes, dry gravelly hills or sandy prairies +
spikate +  and racemose +
pseudopetiolate +, sessile +  and simple +
long-lived +  and annual +
0 cm0 mm <br />0 m <br /> (26.5 cm265 mm <br />0.265 m <br />) +
succulent +
0 cm0 mm <br />0 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1.9 cm19 mm <br />0.019 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
dentate +  and entire +
papillose +
denticulate +
cylindrical +, ovoid +  and 3-angled +
0.4 cm4 mm <br />0.004 m <br /> (?) +  and 0.6 cm6 mm <br />0.006 m <br /> (?) +
not +  and articulate +
2.3 cm23 mm <br />0.023 m <br /> (3.6 cm36 mm <br />0.036 m <br />) +
semisucculent +
Flowering late summer–early fall. +
cylindrical +
fibrous +  and fleshy +
triangular +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Conservation concern +
brown +  and darker green +
elongate +
exserted +  and included +
subterranean +
3 +  and 1 +
1.4 cm14 mm <br />0.014 m <br /> (2.8 cm28 mm <br />0.028 m <br />) +
Agave longiflora +  and Polianthes runyonii +
Manfreda longiflora +
Manfreda +
species +
rhizomatous +  and scapose +
polygamodioecious +, dioecious +, monoecious +, polycarpic +  and monocarpic +
small;gigantic +
petal-like +