Zephyranthes grandiflora

Lindley

Bot. Reg. 11: plate 902. 1825.

Introduced
Treatment appears in FNA Volume 26. Treatment on page 299. Mentioned on page 298.

Leaf-blade shiny green, to 7 mm wide. Spathe 3–4 cm. Flowers usually inclined; perianth pink, funnelform, 5.6–9 cm; perianth-tube green, (1.2–) 1.8–2.3 cm, increasing in diam., ca. 1/4 (1/5–1/3) perianth length, usually less than or equaling filament length, ca. 1/3–1/2 spathe length; tepals reflexed; stamens diverging, appearing equal; filaments filiform, 2–3 cm; anthers 13–22 mm; style longer than perianth-tube; stigma 3-fid, exserted more than 2 mm beyond anthers; pedicel 1.3–3.8 cm, usually shorter than spathe. 2n = 48.


Phenology: Flowering spring–early summer (Apr–Jul).
Habitat: Open areas in or near moist woods
Elevation: 0–100 m

Distribution

V26 576-distribution-map.jpg

Introduced; Ala., Fla., La., Miss., Tex., e Mexico, West Indies, Central America

Discussion

Zephyranthes grandiflora frequently displays flowers with extra parts and has been widely distributed as an ornamental. Flowers with extra parts have been seen in Z. atamasca, Z. candida, Z. rosea, and Z. treatiae. Zephyranthes grandiflora also has been found to have a variable number of chromosomes in cells from single plants (R. O. Flagg 1961).

As a rule, the flowers of Zephyranthes species having high chromosome numbers, 2n = 48 or more, are built for self-fertilization, with the stigma borne very near (within 2 mm), among, or beneath the anthers (R. O. Flagg and W. S. Flory 1962). However, Zephyranthes grandiflora is an exception and often exhibits poor fertility.

Selected References

None.

Lower Taxa

None.

"wide" is not a number."thicker" is not a number.

... more about "Zephyranthes grandiflora"
dorsifixed +
linear-oblong +
1.3 cm13 mm <br />0.013 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
Raymond O. Flagg +, Gerald L. Smith +  and Walter S. Flory† +
Lindley +
whorled +, opposite +  and alternate +
overlapping +
dilated +
Atamosco +
reticulate-veined +  and parallel-veined +
sheathing +  and involucrate +
1;several +
brown +  and black +
Ala. +, Fla. +, La. +, Miss. +, Tex. +, e Mexico +, West Indies +  and Central America +
0–100 m +
diverging +  and erect +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
actinomorphic +
unisexual +  and bisexual +
thin-walled +  and capsular +
indehiscent +, septicidal +  and loculicidal +
oblate +  and subglobose +
membranaceous +  and leathery +
Open areas in or near moist woods +
ebracteate +, spathaceous +  and 1-flowered +
paired +, paniculate +  and racemose +
persistent +
recumbent +  and erect +
many;several +
1.3 cm13 mm <br />0.013 m <br /> (3.8 cm38 mm <br />0.038 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
1.8 cm18 mm <br />0.018 m <br /> (2.3 cm23 mm <br />0.023 m <br />) +
zygomorphic +  and actinomorphic +
subrotate +
5.6 cm56 mm <br />0.056 m <br /> (9 cm90 mm <br />0.09 m <br />) +
Flowering spring–early summer (Apr–Jul). +
wind-distributed +
wedge--shaped +
3 cm30 mm <br />0.03 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Introduced +
adnate +  and free +
staminodial +
1 +  and several +
3 +  and 1 +
filiform +
Cooperia +
Zephyranthes grandiflora +
Zephyranthes +
species +
connate +  and distinct +
subequal +
sepaloid +  and petaloid +
narrower +
3 +  and 2 +