Polygala bifoliata

Polygala bifoliata is a species of flowering plant in the milkwort family (Polygalaceae), which was first described in 2012 by Raelee Kerrigan.[4][3] It is endemic to the Northern Territory and Western Australia.[2][3]

Polygala bifoliata

Least Concern (TPWCA)[1]
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Polygalaceae
Genus: Polygala
Species:
P. bifoliata
Binomial name
Polygala bifoliata
R.A.Kerrigan[2][3]

The specific epithet, bifoliata, derives from Latin, bi- ("two") and foliatus ("leaf-bearing"), and refers to the two leaf shapes found on most specimens.[3]

Description

Polygala bifoliata is an annual herb growing up to 15 cm high. It is either prostrate or spreads horizontally with branches growing upwards. It has a covering (indumentum) of curved and straight hairs (sometimes curved hairs only). The stems and leaves are occasionally a dark reddish-purple. It has two leaf shapes: narrow and linear (often on erect branches), and elliptic or ovate leaves (usually on decumbent branches). The inflorescence is usually an axillary raceme exceeding the leaves, and up to 140 mm long. The corolla is purple and the floral appendages have fringed margins. The style is hooked (in a horseshoe-shape at the apex). The capsule has no wing, and is strongly asymmetrical. The seeds are ovoid and 2.0-3.6 mm by1.0-1.8 mm wide and have a covering of fine white hairs over the whole seed and thicker recurved hollow hairs next to the aril. .

Distribution

It is found in the IBRA regions of: the Arnhem Coast, the Arnhem Plateau, the Central Kimberley, the Daly Basin, Dampierland, Darwin Coastal, Gulf Coastal, Gulf Fall and Uplands, Northern Kimberley, Ord Victoria Plain, Pine Creek, Sturt Plateau, Tiwi Cobourg, and Victoria Bonaparte,[1]

Habitat

It is found in eucalyptus woodlands, but rarely in seasonally inundated habitats (which is one of the features which distinguishes it from P. stenosepala).[1]

gollark: ... what even
gollark: There was some nice elegant explanation I forgot. IIRC it's something to do with the derivative of e^x being equal to itself.
gollark: I assume you're doing binomial distributions if whatever A-level spec you do is similar to mine, which it probably is, in which case I don't think they cover anything more advanced than trial and error/look at a table for that. Although it's probably <=/>= instead of = 0.02, as there's no guarantee that there is any x satisfying the = version.
gollark: It *also* matters how it's distributed.
gollark: I'm pretty sure you need information about what "X" is there.

References
  1. "NT Flora Polygala bifoliata factsheet". eflora.nt.gov.au. Retrieved 26 April 2020.
  2. "Polygala bifoliata R.A.Kerrigan | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 24 April 2020.
  3. Kerrigan, R.A. (2012). "A treatment for Polygala of northern Australia". Australian Systematic Botany. 25 (2): 83. doi:10.1071/SB08032. ISSN 1030-1887.
  4. "Polygala bifoliata | International Plant Names Index". www.ipni.org. Retrieved 24 April 2020.


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