Flora of North America species comparison

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Oenothera lindheimeri

Oenothera laciniata

Lindheimer's beeblossom

cut-leaf evening-primrose, southern evening primrose
Habit Herbs clumped perennial, villous, usually more densely so proximally, hairs erect or ± appressed on leaf blades, also glandular puberulent distally, rarely glabrate; from taproot. Herbs annual, sparsely to moderately strigillose, sometimes also villous, sometimes also becoming glandular puberulent distally.
Stems

many from base, ascending or erect, usually branched, 50–150 cm.

erect to ascending, unbranched to much branched, 5–50 cm.
Leaves

in a basal rosette and cauline, 0.5–9 × 0.

in a basal rosette and cauline, basal 4–15 × 1–3 cm, cauline 2–10 × 0.5–3.5 cm;

blade green, narrowly oblanceolate to narrowly elliptic or narrowly oblong, margins usually dentate or deeply lobed;

bracts spreading, flat.
Flowers

4-merous, zygomorphic, opening at sunrise;

floral tube 4–9 mm;

sepals 9–17 mm;

petals white, fading light or deep pink, rhombic-obovate to elliptic, 10–15 mm;

filaments 7–12 mm, anthers 3.5–4.5 mm, pollen 90–100% fertile;

style 16–27 mm, stigma exserted beyond anthers at anthesis.

usually 1 opening per day near sunset;

buds erect, with free tips erect, 0.3–3 mm;

floral tube 12–35 mm;

sepals 5–15 mm;

petals yellow, fading orange or reddish tinged, broadly obovate or obcordate, 5–22 mm;

filaments 3–14 mm, anthers 4–5 mm, pollen ca. 50% fertile;

style 20–50 mm, stigma surrounded by anthers at anthesis.
Capsules

ellipsoid or ovoid, 4-angled, 6–9 × 2–3.5 mm;

sessile.

cylindrical, sometimes slightly enlarged toward apex, 20–50 × 2–4 mm.
Seeds

1–4, yellowish to light brown, 2–3 × 1–1.5 mm.

ellipsoid to subglobose, 0.9–1.8 × 0.4–0.9 mm.
1

–1.3 cm;

blade narrowly elliptic to narrowly oblanceolate, margins coarsely and remotely serrate.

2n

= 14.

= 14.

Oenothera lindheimeri

Oenothera laciniata
Phenology Flowering Apr–Jul(–Oct). Flowering (Feb–)Apr–Sep(–Oct).
Habitat Black soil in coastal prairies. introduced nearly worldwide in temperate and subtropical areas..
Elevation 0–100 m. (0–300 ft.) 0–1000(–1300) m. (0–3300(–4300) ft.)
Distribution
from FNA
LA; TX
[BONAP county map]
from FNA
AL; AR; CA; CT; DC; DE; FL; GA; IA; IL; IN; KS; KY; LA; MA; MD; ME; MI; MN; MO; MS; NC; ND; NE; NJ; NM; NY; OH; OK; PA; RI; SC; SD; TN; TX; VA; VT; WI; WV; WY [Introduced nearly worldwide in temperate and subtropical areas]
[WildflowerSearch map]
[BONAP county map]
Discussion

Oenothera lindheimeri has a fairly narrow distribution and occurs only in Acadia, Allen, Beauregard, Calcasieu, Jefferson Davis, Lafayette, St. Mary, Tangipahoa, and Vermillion parishes in Louisiana, and Brazoria, Brazos, Chambers, Fort Bend, Galveston, Hardin, Harris, Jasper, Jefferson, Liberty, Orange, Victoria, and Victoria counties in Texas.

P. H. Raven and D. P. Gregory (1972[1973]) found Oenothera lindheimeri to be self-incompatible. It occasionally forms hybrids with O. filiformis. This species is widely cultivated and has many different cultivars.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Oenothera laciniata is a PTH species and forms aring of 14 chromosomes in meiosis, and is self-compatible and autogamous (W. Dietrich and W. L. Wagner 1988).

Oenothera laciniata is known in New Mexico from Doña Ana and Roosevelt counties from non-montane habitats and thus do not appear to represent O. pubescens; however, a few collections from Brewster and Jeff Davis counties, Texas, reported by W. Dietrich and W. L. Wagner (1988) as O. laciniata appear to represent collections of O. pubescens. Dietrich and Wagner found that O. laciniata hybridizes not only with O. grandis, but also with O. drummondii subsp. drummondii, O. humifusa, and O. mexicana. It is naturalized nearly worldwide in temperate and subtropical areas.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 10. FNA vol. 10.
Parent taxa Onagraceae > subfam. Onagroideae > tribe Onagreae > Oenothera > sect. Gaura > subsect. Gaura Onagraceae > subfam. Onagroideae > tribe Onagreae > Oenothera > sect. Oenothera > subsect. Raimannia
Sibling taxa
O. acutissima, O. albicaulis, O. argillicola, O. arida, O. arizonica, O. biennis, O. boquillensis, O. brachycarpa, O. calcicola, O. californica, O. canescens, O. capillifolia, O. cavernae, O. cespitosa, O. cinerea, O. clelandii, O. coloradensis, O. cordata, O. coronopifolia, O. coryi, O. curtiflora, O. curtissii, O. deltoides, O. demareei, O. dodgeniana, O. drummondii, O. elata, O. engelmannii, O. falfurriae, O. filiformis, O. filipes, O. flava, O. fruticosa, O. gaura, O. gayleana, O. glaucifolia, O. glazioviana, O. grandiflora, O. grandis, O. harringtonii, O. hartwegii, O. havardii, O. heterophylla, O. hispida, O. howardii, O. humifusa, O. jamesii, O. kunthiana, O. laciniata, O. lavandulifolia, O. linifolia, O. longissima, O. macrocarpa, O. mckelveyae, O. mexicana, O. nealleyi, O. neomexicana, O. nutans, O. nuttallii, O. oakesiana, O. organensis, O. pallida, O. parviflora, O. patriciae, O. perennis, O. pilosella, O. platanorum, O. podocarpa, O. primiveris, O. psammophila, O. pubescens, O. rhombipetala, O. riparia, O. rosea, O. serrulata, O. sessilis, O. simulans, O. sinuosa, O. spachiana, O. speciosa, O. stricta, O. suffrutescens, O. suffulta, O. tetraptera, O. texensis, O. toumeyi, O. triangulata, O. triloba, O. tubicula, O. villosa, O. wolfii, O. xylocarpa
O. acutissima, O. albicaulis, O. argillicola, O. arida, O. arizonica, O. biennis, O. boquillensis, O. brachycarpa, O. calcicola, O. californica, O. canescens, O. capillifolia, O. cavernae, O. cespitosa, O. cinerea, O. clelandii, O. coloradensis, O. cordata, O. coronopifolia, O. coryi, O. curtiflora, O. curtissii, O. deltoides, O. demareei, O. dodgeniana, O. drummondii, O. elata, O. engelmannii, O. falfurriae, O. filiformis, O. filipes, O. flava, O. fruticosa, O. gaura, O. gayleana, O. glaucifolia, O. glazioviana, O. grandiflora, O. grandis, O. harringtonii, O. hartwegii, O. havardii, O. heterophylla, O. hispida, O. howardii, O. humifusa, O. jamesii, O. kunthiana, O. lavandulifolia, O. lindheimeri, O. linifolia, O. longissima, O. macrocarpa, O. mckelveyae, O. mexicana, O. nealleyi, O. neomexicana, O. nutans, O. nuttallii, O. oakesiana, O. organensis, O. pallida, O. parviflora, O. patriciae, O. perennis, O. pilosella, O. platanorum, O. podocarpa, O. primiveris, O. psammophila, O. pubescens, O. rhombipetala, O. riparia, O. rosea, O. serrulata, O. sessilis, O. simulans, O. sinuosa, O. spachiana, O. speciosa, O. stricta, O. suffrutescens, O. suffulta, O. tetraptera, O. texensis, O. toumeyi, O. triangulata, O. triloba, O. tubicula, O. villosa, O. wolfii, O. xylocarpa
Synonyms Gaura lindheimeri, G. filiformis var. munzii O. minima, O. repanda, O. sinuata, O. sinuata var. minima, Onagra sinuata, Raimannia laciniata
Name authority (Engelmann & A. Gray) W. L. Wagner & Hoch: Syst. Bot. Monogr. 83: 213. (2007) Hill: Veg. Syst. 12(app.): 64, plate 10. (1767)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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