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The Texas Oklahoma Regional Consortium of Herbaria
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Limnanthaceae
Paul Rothrock
FNA
Resources
Gordon C. Tucker in Flora of North America (vol. 7)
Herbs,
annual; glabrous or pubescent (not glandular; producing glucosinolates).
Stems
erect, decumbent, or sprawling; unbranched.
Leaves
alternate, simple or compound; venation pinnate; stipules absent; petiole present; blade margins entire or pinnately lobed, bipinnate, or ternate.
Inflorescences
axillary, flowers solitary; bracts absent.
Pedicels
present.
Flowers
usually bisexual, usually actinomorphic, rotate; perianth and androecium hypogynous; sepals usually persistent, 3 or 5 (4 in
Limnanthes macounii
), distinct or slightly connate basally, equal or unequal; petals same number as sepals, convolute in bud, distinct, equal; nectary glands present; stamens 3, 6, 8, or 10 (same or twice the number of sepals); filaments distinct, glabrous; anthers dehiscing by longitudinal slits, introrse or extrorse, tetrasporangiate, pollen shed in single grains, binucleate, 2-4-aperturate, colpate or colporate; disc absent; gynophore absent; pistil 1; ovary 2-5-carpellate, syncarpous basally (united by gynobasic style); placentation basal; ovules 1 per locule, anatropous, unitegmic; style 1 (gynobasic); stigmas (2 or) 3-5 (dry, papillate).
Fruits
schizocarps (mericarps or nutlets), tuberculate, ridged, smooth, or rugulose.
Seeds
1; not arillate; endosperm absent.
Species within checklist:
Indiana State Parks: Mounds State Park
Floerkea proserpinacoides
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