Plantago hookeriana

Fischer & C. A. Meyer

Index Seminum (St. Petersburg) 1838: 39. 1839.

Common names: Hooker's plantain
Synonyms: Plantago hookeriana var. nuda (A. Gray) Poe
Treatment appears in FNA Volume 17. Treatment on page 287. Mentioned on page 283.

Annuals; roots taproots, slender. Stems 0–10 mm. Leaves 60–120 × 4–10 mm; blade linear, margins toothed (teeth to 4 mm), rarely entire, veins conspicuous or not, surfaces villous or sericeous. Scapes 280–580 mm, hairy, hairs antrorse, long and short. Spikes greenish or brownish, 50–180 mm, densely flowered, flowers in whorls or pairs; bracts ovate or triangular, 1.5–6 mm, length 0.6–1.4 times sepals, apex acute or acuminate. Flowers: sepals 2.5–4 mm; corolla bilaterally symmetric, abaxial and lateral lobes reflexed, adaxial erect, 2.2–2.5 mm, base slightly cordate; stamens 4, connective significantly elongated, apex acute. Seeds 2, 2.4–3.4 mm. 2n = 20.


Phenology: Flowering spring.
Habitat: Sandy soils, disturbed areas.
Elevation: 0–1300 m.

Distribution

La., Miss., Tex., Mexico (Chihuahua), Mexico (Coahuila), Mexico (Nuevo León), Mexico (Tamaulipas)

Discussion

Selected References

None.

Lower Taxa

None.

"-1.4timessepals" is not declared as a valid unit of measurement for this property.

... more about "Plantago hookeriana"
0.22 cm2.2 mm <br />0.0022 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Acute (?) +  and Acuminate (?) +
Alexey Shipunov +
Fischer & C. A. Meyer +
alternate +, opposite +, whorled +, helical +  and subopposite +
cordate +
not +, leathery +  and fleshy +
triangular;ovate +
cuplike +
Hooker's plantain +
ligulate +, unilabiate +, regular +, personate +  and bilabiate +
semitransparent +
Ovoid (?) +, Globular (?) +, Ellipsoid (?) +, Urceolate (?) +, Tubular (?) +, Cylindric (?) +, Less rotate (?) +  and Salverform (?) +
La. +, Miss. +, Tex. +, Mexico (Chihuahua) +, Mexico (Coahuila) +, Mexico (Nuevo León) +  and Mexico (Tamaulipas) +
drupe-like +
0–1300 m. +
curved +  and straight +
1 +  and 4 +
poricidal +, septicidal +, loculicidal +  and dehiscence +
ovoid +  and lanceoloid +
Sandy soils, disturbed areas. +
persistent +  and deciduous +
60mm;120mm +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
axile +  and parietal +
basal +, apical +  and superior +
tenuinucellate +, unitegmic +  and hemitropous +
campylotropous +, hemianatropous +  and anatropous +
5 +  and 4 +
Flowering spring. +
Index Seminum (St. Petersburg) +
minute +
ascending +  and erect +
28 cm280 mm <br />0.28 m <br /> (58 cm580 mm <br />0.58 m <br />) +
distinct +
4 +  and 3 +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
brownish +  and greenish +
shiny +  and dull +
5 cm50 mm <br />0.05 m <br /> (18 cm180 mm <br />0.18 m <br />) +
climbing +  and scrambling +
sprawling +, creeping +  and prostrate +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
elongate +
sericeous +  and villous +
Plantago hookeriana var. nuda +
Plantago hookeriana +
Plantago +
species +
gibbous +  and spurred +
hairy +  and glabrous +
not +  and conspicuous +
biennial +, perennial +  and annual +
6 +, 5 +  and 4 +