Johnston's phlox |
Phlox drummondii ssp. johnstonii |
Plants |
Not Listed |
Not Listed |
G5T3 |
S3 |
True |
Found on sandy soils; Annual; Flowering/Fruiting April-June |
Texas trailing phlox |
Phlox nivalis ssp. texensis |
Plants |
LE |
E |
G4T2 |
S2 |
True |
Relatively open fire-maintained pine or pine-hardwood forests on soils with a deep, sandy surface layer and clayey subsurface layers; flowering late March-early April (-May) |
Oklahoma phlox |
Phlox oklahomensis |
Plants |
Not Listed |
Not Listed |
G3 |
SH |
False |
Known from a 1958 collection from an oak woodland four miles east of Garland, Texas (Carr 2015). |
Trans-Pecos maidenbush |
Phyllanthopsis arida |
Plants |
Not Listed |
Not Listed |
G2Q |
S1 |
False |
Crevices in calcareous bedrock exposures on arid mountain slopes, usually with succulents, Texas sites are on Cretaceous limestone; Mexican sites differ; flowering July-October |
sand sheet leaf-flower |
Phyllanthus abnormis var. riograndensis |
Plants |
Not Listed |
Not Listed |
G5T3 |
S3 |
True |
Semi-desert scrub of deep South Texas; Annual; Flowering Feb-July; Fruiting Oct-March |
heather leaf-flower |
Phyllanthus ericoides |
Plants |
Not Listed |
Not Listed |
G2 |
S1 |
False |
Crevices in limestone on dry canyon walls and other rock outcrops; flowering October, and presumably in other months, given sufficient moisture |
threadleaf bladderpod |
Physaria angustifolia |
Plants |
Not Listed |
Not Listed |
G3 |
S1 |
False |
Limestone glades or chalk outcrops on the Annona and other Cretaceous formations (Carr 2011). March - May. |
Engelmann's bladderpod |
Physaria engelmannii |
Plants |
Not Listed |
Not Listed |
G4 |
S3 |
False |
Grasslands and calcareous rock outcrops in a band along the eastern edge of the Edwards Plateau, ranging as far north as the Red River (Carr 2015). |
McVaugh's bladderpod |
Physaria mcvaughiana |
Plants |
Not Listed |
Not Listed |
G3 |
S3 |
False |
Grasslands on rocky limestone uplands at moderate elevations; Stream bed gravels, rocky limestone slopes and hills, canyon bottoms and slopes, limestone rubble, 1200-1600 m elevation; Perennial; Flowering/Fruiting March-Aug |
white bladderpod |
Physaria pallida |
Plants |
LE |
E |
G1 |
S1 |
True |
Natural openings or glades within pine-oak forests on calcareous sandy loam over glauconite or ironstone of the Weches Formation; these glades are seep moistened during the winter and spring, but become desiccated during the summer; flowering April-May |
Zapata bladderpod |
Physaria thamnophila |
Plants |
LE |
E |
G1G2 |
S1S2 |
False |
Open, thorn shrublands on shallow, well-drained sandy loams and sandstone outcrops of Eocene origin, including the Jackson Group and Yegua and Laredo formations; the known sites soils are mapped as Zapata, Maverick, Catarina, or Copita Series; flowering usually February-April, but also summer or fall depending on rainfall |
strong bladderpod |
Physaria valida |
Plants |
Not Listed |
Not Listed |
G3 |
S1 |
False |
Open gravelly areas over limestone in pinyon-juniper woodlands at elevations of 900-2,000 m (2,950-6,550 ft); flowering March-May (-August) |
Correll's false dragon-head |
Physostegia correllii |
Plants |
Not Listed |
Not Listed |
G2 |
S2 |
False |
Wet, silty clay loams on streamsides, in creek beds, irrigation channels and roadside drainage ditches; or seepy, mucky, sometimes gravelly soils along riverbanks or small islands in the Rio Grande; or underlain by Austin Chalk limestone along gently flowing spring-fed creek in central Texas; flowering May-September |
long-sepaled false dragon-head |
Physostegia longisepala |
Plants |
Not Listed |
Not Listed |
G2G3 |
S2 |
False |
Relatively open areas on poorly drained, acid loams on level terrain over Beaumont, Deweyville, and Montgomery formations; probably originally found in fire-maintained wetland pine savannas or in the transition zone between such flatwoods and adjacent coastal prairies, now found primarily in secondary habitats, such as wet borrow ditches along roadsides and moist areas in human-made clearings in pine woodlands; flowering early May-early July |
little rock lettuce |
Pinaropappus parvus |
Plants |
Not Listed |
Not Listed |
G3 |
S3 |
False |
Occurs on limestone cliff faces and among boulders on mountain slopes, in oak-pine, juniper and chaparral zones, at altitudes ranging from 1500 to 2200 meters; Perennial; Flowering June-July; Fruiting July |
pino real |
Pinus arizonica var. stormiae |
Plants |
Not Listed |
Not Listed |
G4T3 |
S1 |
False |
Known from a few sites in the Chisos Mountains (Powell 1998) (Carr 2015) |
Chapman's orchid |
Platanthera chapmanii |
Plants |
Not Listed |
Not Listed |
G2 |
S1 |
False |
In Texas, appears restricted to wetland pine savannas and savanna swales in hillside seepage bogs, two very restricted and declining habitats in the State; flowering July-August |
yellow fringeless orchid |
Platanthera integra |
Plants |
Not Listed |
Not Listed |
G3G4 |
S1 |
False |
Currently known only from a few bog sites in Angelina, Jasper and Newton counties; Perennial; Flowering/Fruiting Aug |
Big Bend bluegrass |
Poa strictiramea |
Plants |
Not Listed |
Not Listed |
G3 |
S1 |
False |
Grasslands and open oak woodlands on igneous soils on rocky slopes above 1,800 m (5,900 ft) in the Chisos Mountains; in Mexico, found mostly on steep, north-facing slopes and cliff bases from the highest elevation creosote bush shrublands to mid-elevation pine-oak woodlands, on both igneous and limestone substrates; flowering May-September |
South Texas yellow clammyweed |
Polanisia erosa ssp. breviglandulosa |
Plants |
Not Listed |
Not Listed |
G5T3T4 |
S3S4 |
True |
Sand plains of south Texas (Iltis 1958). Flowering early spring-mid fall. |
Hinckley's Jacob's-ladder |
Polemonium pauciflorum ssp. hinckleyi |
Plants |
Not Listed |
Not Listed |
G3G5T2Q |
S1 |
False |
A substantial population in the Davis Mountains occurs in a perennially mesic canyon and shaded talus boulder field on an igneous slope, elevation 2,100-2,300 m (6,900-7,550 ft), in the shade of a pine-oak-juniper forest; flowering July-October |
Hooker's milkwort |
Polygala hookeri |
Plants |
Not Listed |
Not Listed |
G3 |
S2 |
False |
Freshwater Wetland |
Maravillas milkwort |
Polygala maravillasensis |
Plants |
Not Listed |
Not Listed |
G2 |
S1 |
False |
Crevices of limestone exposed on canyons walls, along the Rio Grande and its tributaries, and in low desert mountains at 450-950 m (1,450-3,100 ft) elevation; appears restricted to the area of the Lower Canyons of the Rio Grande and lower Boquillas Canyon on both sides of the border; flowering May-October |
Palmer's milkwort |
Polygala palmeri |
Plants |
Not Listed |
Not Listed |
G3 |
S2 |
False |
Limestone slopes; Perennial; Flowering April-July; Fruiting June-Oct |
rock crevice milkwort |
Polygala rimulicola var. rimulicola |
Plants |
Not Listed |
Not Listed |
G3T3 |
S2 |
False |
Barren/Sparse Vegetation (limestone canyon walls, outcrops, and boudlers) |