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Phlox species [Polemoniaceae]

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Scientific Name Phlox cuspidata USDA PLANTS Symbol PHCU2
Common Name Pointed Phlox ITIS Taxonomic Serial No. 30929
Family Polemoniaceae (Phlox) Wildflower Center Ref. Click Here
Description Habitat: Prairies, grasslands, open oak woodlands; sandy or loamy soils; somewhat hairy.
Plant: Small annual, single or branched stems 2-1/2 to 6 inches tall.
Leaves: Lower leaves opposite, oblanceolate becoming alternate and elliptic to linear upward; up to 1-3/8 long and 1/3-inch wide; margins entire.
Inflorescence: Terminal clusters of a few flowers with 5 pointed petals, blue/purple to pink with faintly streaked pale eye; corolla tube somewhat hairy, some hairs glandular.
Bloom Period: February to May.
References: "Wildflowers of Texas" by Geyata Ajilsvsgi and "Manual of the Vascular Plants of Texas" by Corell and Johnston.
BONAP Distribution Map

Texas Status:
Native
Scientific Name Phlox drummondii ssp. mcallisteri USDA PLANTS Symbol PHDRM2
Common Name McAllister's Phlox ITIS Taxonomic Serial No. 845307
Family Polemoniaceae (Phlox) Wildflower Center Ref. Click Here
Description Habitat: Sandy, open ground; native to North Central Texas.
Plant: Low, upright annual 4 to 20 inches tall; stems and leaves covered with long, soft, hairs; may be sparsely glandular.
Leaves: Narrow leaves oblong-ovate or oblong-lanceolate, 3/8 to 2-3/4 inches long and up to 1/2 to almost 3/4 inches wide; opposite below becoming alternate, sessile to clasping.
Inflorescence: Numerous flowers up to 1-inch across in congested clusters with 5 lavender or purplish petals and pale or white eye with possible narrow-rayed purple star in the center.
Bloom Period: April and May.
References: "Wildflowers of Texas" by Geyata Ajilsvsgi, "Wildflowers of the Texas Hill Country" by Marshall Enquist, "Manual of the Vascular Plants of Texas" by Corell and Johnston and "Shinners & Mahler’s Flora of North Central Texas" by Diggs, Lipscomb and O’Kennon.
BONAP Distribution Map

Texas Status:
Native
Scientific Name Phlox drummondii ssp. wilcoxiana USDA PLANTS Symbol PHDRW
Common Name Wicox's Phlox ITIS Taxonomic Serial No. 30903
Family Polemoniaceae (Phlox) SEINet
Reference
Click Here
Description Habitat: Sandy, open ground; native to southeast Texas.
Plant: Low, upright annual 4 to 20 inches tall; stems and leaves covered with soft, hairs; may be sparsely glandular.
Leaves: Narrow leaves oblong-ovate or oblong-lanceolate, 3/8 to 2-3/4 inches long and up to 1/4 to 1/2 inches wide, smooth edges; opposite below becoming alternate.
Inflorescence: Numerous flowers up to 1-inch across in congested clusters with 5 bright red petals with central darker ring or star.
Bloom Period: April and May.
References: "Wildflowers of Texas" by Geyata Ajilsvsgi, "Manual of the Vascular Plants of Texas" by Corell and Johnston and "Shinners & Mahler’s Flora of North Central Texas" by Diggs, Lipscomb and O’Kennon.
Note: This subspecies is not native to Travis County where all of these images came from, most are likely garden escapees; the one from Wildflower Center, like most of the plants there, is cultivated.
BONAP Distribution Map

Texas Status:
Native
Scientific Name Phlox mesoleuca USDA PLANTS Symbol PHME2
Common Name Thread-leaf Phlox ITIS Taxonomic Serial No. 30962
Family Polemoniaceae (Phlox) SEINet
Reference
Click Here
Description Habitat: Dry, rocky areas in the Chihuahuan Desert of Texas and New Mexico.
Plant: Perennial with few slender decumbent, ascending or erect stems 6 to 12 inches long or more depending on climate and growing conditions; stems and leaves moderately covered with pubescent, glandular hairs.
Leaves: Narrow, opposite leaves from a few (~5) nodes along stems; linear blades 2 to 3-1/2 inches long and less than 1/5-inch wide and sessile.
Inflorescence: A few pink or purple (or, less common, white) flowers 1 inch or more across with white center; corolla tube opening to 5 ovate lobes.
Bloom Period: April to July.
References: "Wildflowers of Texas" by Michael Eason, "Manual of the Vascular Plants of Texas" by Corell and Johnston and American Southwest.
Note: Some authorities, including iNaturalist, have suggested that P. mesoleuca is actually a synonym for P. nana.
BONAP Distribution Map

Texas Status:
Native
Scientific Name Phlox roemeriana USDA PLANTS Symbol PHRO3
Common Name Golden-eye Phlox ITIS Taxonomic Serial No. 504327
Family Polemoniaceae (Phlox) Texas A&M Reference Click Here
Description Habitat: Dry, rocky areas with calcareous soils in fields, grasslands, open woodlands and roadsides; endemic to Edwards Plateau and southern High Plains.
Plant: Erect, branching annual up to 14 inches tall.
Leaves: Lower leaves oblanceolate and opposite becoming lanceolate and alternate above; up to 2 inches long and 3/8-inch wide; with pubescent hairs on surfaces and ciliate margins.
Inflorescence: Numerous flowers up to 1-inch across in congested clusters with 5 purple to pink lobes and a conspicuous yellow center star bordered by white.
Bloom Period: March to May.
References: "Wildflowers of Texas" by Geyata Ajilsvsgi, "Manual of the Vascular Plants of Texas" by Corell and Johnston and "Shinners & Mahler’s Flora of North Central Texas" by Diggs, Lipscomb and O’Kennon.
BONAP Distribution Map

Texas Status:
Native
© Tom Lebsack 2022