familyPolygalaceae
genusPolygala
speciesPolygala scoparioides

Polygala scoparioides

Chodat

Mém. Soc. Phys. Genève 31(2): 284, plate 26, figs. 6, 7. 1893.

J. Richard Abbott
Common names: Broom milkwort
Treatment appears in FNA Volume 10.

Herbs perennial, multistemmed, (0.5–) 0.9–3 (–5) dm, unbranched or sparsely branched distally; from thickened caudex. Stems erect, sometimes very slightly glaucous, puberulent, hairs incurved. Leaves alternate; sessile or subsessile; blade linear-lanceolate, linear, or linear-acicular, (3–) 7–15 × 0.6–1.3 mm, base acute, apex acute to acuminate, surfaces subglabrous or glabrous. Racemes loosely cylindric (flowering portion may appear subcapitate from deciduous fruit), (1–) 1.5–7.8 ×0.4–0.8 cm; peduncle 0.2–1 cm; bracts deciduous, ovate to lanceolate-ovate. Pedicels 0.5 mm, glabrous. Flowers white, greenish veined, wings with green or purple longitudinal stripe, keel green to purplish brown, (2.7–) 2.9–4.7 mm; sepals oblong-ovate, 1.3 mm; wings spatulate-obovate, (2.4–) 2.7–4.5 × 1.3–1.6 mm, apex acute to obtuse; keel 2.8 mm, crest 2-parted, with 3 usually divided lobes on each side. Capsules oblong-ellipsoid, 3–4.5 × 1.6–2 mm, abaxial locule not winged, adaxial locule slightly longer, winged, wing very narrow. Seeds 2.5–3 mm, puberulent, coat with rows of pits 0.05 mm wide; aril 1–1.9 mm, lobes (1/2–) 2/3 to subequal length of seed. 2n = 32, 34.


Phenology: Flowering early spring–late fall.
Habitat: Various substrates, mostly on limestone, open rocky areas in scrub, grasslands, disturbed areas, chaparral, open woodlands.
Elevation: 500–1900 m.

Distribution

Ariz., N.Mex., Tex., Mexico (Chihuahua), Mexico (Coahuila), Mexico (Nuevo León), Mexico (San Luis Potosí), Mexico (Zacatecas)

Discussion

Polygala scoparioides is closely related to other Mexican taxa of the Monninopsis group, such as P. mexicana Moçiño ex Cavanilles, with which it intergrades morphologically.

Selected References

None.

Lower Taxa

None.

"subequal" is not a number.

... more about "Polygala scoparioides"
RDF feed
2n chromosome quantity
34 +  and 32 +
Abaxial locule architecture
not winged +
Adaxial locule architecture
winged +
Adaxial locule length or size
longer +
Anther dehiscence
dehiscent +
Anther fixation
basifixed +
Apex shape
acute +  and obtuse +
Aril some measurement
0.1 cm1 mm <br />0.001 m <br /> (0.19 cm1.9 mm <br />0.0019 m <br />) +
Author
J. Richard Abbott +
Authority
Chodat +
Base shape
acute +
Blade architecture
veined +
Blade atypical length
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Blade coloration or relief
punctate +
Blade growth form
dimorphic +
Blade length
0.7 cm7 mm <br />0.007 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Blade position or structure subtype
secondary +
Blade prominence
obscure +
Blade shape
linear-acicular +, linear +  and linear-lanceolate +
Blade size
uniform +
Blade surface pubescence
pubescent +  and glabrous +
Blade width
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.13 cm1.3 mm <br />0.0013 m <br />) +
Bract duration
deciduous +
Bract quantity
1 +
Bract shape
ovate +  and lanceolate-ovate +
Bracteole presence
absent +
Capsule length
0.3 cm3 mm <br />0.003 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
Capsule shape
oblong-ellipsoid +
Capsule width
0.16 cm1.6 mm <br />0.0016 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Common name
Broom milkwort +
Corymb arrangement
fascicles +
Corymb size
reduced +
Crest pubescence
glabrous +
Crest shape
2-parted +
Distribution
Ariz. +, N.Mex. +, Tex. +, Mexico (Chihuahua) +, Mexico (Coahuila) +, Mexico (Nuevo León) +, Mexico (San Luis Potosí) +  and Mexico (Zacatecas) +
Elevation
500–1900 m. +
Filament fusion
connate +
Flower architecture
veined +
Flower architecture or shape
symmetric +
Flower arrangement
not grouped +
Flower atypical some measurement
0.9 cm9 mm <br />0.009 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Flower coloration
greenish +  and white +
Flower coloration or density
purple +
Flower location
in proximal leaf-axils +  and subterranean +
Flower quantity
fewer +
Flower reproduction
cleistogamous +  and chasmogamous +
Flower some measurement
0.1 cm1 mm <br />0.001 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Fruits capsule architecture
samaroid +  and pseudomonomerous +
Fruits capsule dehiscence
dehiscent +
Fruits capsule pubescence
glabrous +  and pubescent +
Fruits capsule shape
isodiametric +  and slightly oblong +
Habitat
Various substrates, mostly on limestone, open rocky areas in scrub, grasslands, disturbed areas, chaparral, open woodlands. +
Hair orientation
incurved +
Herb architecture
branched +  and unbranched +
Herb architecture or growth form
multistemmed +
Herb atypical some measurement
3dm (5dm) +
Herb duration
perennial +
Herb quantity
single +
Herb some measurement
0.9dm (3dm) +
Inflorescence position or structure subtype
terminal +
Keel atypical some measurement
0.27 cm2.7 mm <br />0.0027 m <br /> (0.29 cm2.9 mm <br />0.0029 m <br />) +
Keel coloration
green +  and purplish brown +
Keel shape
crested +
Keel some measurement
2.8 cm28 mm <br />0.028 m <br /> (0.29 cm2.9 mm <br />0.0029 m <br />) +
Lateral inner sepal architecture
petaloid +
Lateral inner sepal fusion
adnate +
Lateral inner sepal size
expanded +
Lateral petal quantity
2 +
Lateral petal size
reduced +
Leaf architecture
subsessile +  and sessile +
Leaf arrangement
alternate +
Leaf position
cauline +  and basal +
Leaf presence
absent +
Leaf variability
uniform +
Lobe quantity
1/2 (2/3) +
Lobe shape
divided +
Locule atypical quantity
2 (40) +
Lower petal life cycle
anthesis +
Lower petal quantity
1 +
Lower sepal quantity
2 +
Margin architecture
not +  and winged +
Margin architecture or shape
entire +
Margin position
leaf-opposed +, axillary +  and terminal +
Margin pubescence
glabrous +, ciliolate +  and ciliate +
Number of lower taxa
0 +
Outer sepal quantity
1 +  and 3 +
Ovary architecture
2-loculed +
Ovary architecture or structure in adjective form
2[-8]-locular +
Ovary placentation
axile +
Ovary position
superior +
Ovule quantity
1 +
Pedicel architecture
winged +
Pedicel presence
absent +
Pedicel pubescence
glabrous +
Pedicel some measurement
0.5 cm5 mm <br />0.005 m <br /> (?) +
Peduncle presence
absent +
Peduncle some measurement
0.2 cm2 mm <br />0.002 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Petal quantity
3 +
Phenology
Flowering early spring–late fall. +
Pistil architecture
syncarpous +  and 2[-8]-carpellate +
Publication title
Mém. Soc. Phys. Genève +
Publication year
1893 +
Raceme architecture
interrupted +
Raceme atypical length
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Raceme length
1.5 cm15 mm <br />0.015 m <br /> (7.8 cm78 mm <br />0.078 m <br />) +
Raceme shape
cylindric +
Raceme width
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Reference
None +
Rootstock coloration
usually brownish +  and whitish +
Rootstock relief
exfoliating +
Row width
0.05 cm0.5 mm <br />5.0e-4 m <br /> (?) +
Seed architecture
arillate +
Seed architecture or pubescence or relief
smooth +
Seed coloration
blackish +
Seed pubescence
puberulent +
Seed quantity
1 +
Seed shape
ellipsoid +
Seed some measurement
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Seeds coat architecture
arillate +
Seeds coat pubescence
pubescent +
Sepal arrangement
imbricate +
Sepal duration
persistent +
Sepal pubescence
glabrous +
Sepal quantity
5 +
Sepal shape
oblong-ovate +
Sepal size
unequal +
Sepal some measurement
1.3 cm13 mm <br />0.013 m <br /> (?) +
Shrub architecture
unarmed +
Shrub growth form
clonal +
Shrub reproduction
synoecious +
Slit height or length or size
short +
Species architecture
capsular +
Stamen atypical quantity
6 (8) +
Stamen quantity
8 +
Stem architecture or arrangement
lax +
Stem growth form or orientation
prostrate +  and decumbent +
Stem orientation
erect +
Stem pubescence
puberulent +  and glaucous +
Stigma quantity
2 +
Stipule architecture
not +  and petiolate +
Stipule presence
absent +
Stripe coloration
green +
Stripe coloration or density
purple +
Stripe dehiscence or orientation
longitudinal +
Style quantity
1 +
Subapical pore quantity
1 +
Surface pubescence
glabrous +  and subglabrous +
Taxon family
Polygalaceae +
Taxon name
Polygala scoparioides +
Taxon parent
Polygala +
Taxon rank
species +
Upper petal arrangement or vernation
conduplicate +
Upper petal orientation
reflexed +
Upper petal quantity
2 +
Upper petal shape
crested +  and lobed +
Upper sepal quantity
2 +
Volume
Volume 10 +
Wing atypical length
0.24 cm2.4 mm <br />0.0024 m <br /> (0.27 cm2.7 mm <br />0.0027 m <br />) +
Wing duration
persistent +
Wing length
0.27 cm2.7 mm <br />0.0027 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
Wing pubescence
glabrous +
Wing shape
spatulate-obovate +
Wing size or width
narrow +
Wing some measurement
0.1 cm1 mm <br />0.001 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Wing width
1.3mm;1.6mm +