Atlas of the Flora of New England

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Genera - W

Waldsteinia
Weigela
Wissadula (see Pseudabutilon)
Wisteria
Wolffia
Wolffiella
Woodsia
Woodwardia


WALDSTEINIA (Family: Rosaceae)


Waldsteinia fragarioides (Michaux) Trattinnick - Barren Strawberry. 2n = 14, 21, 42.


Rich, usually dry, woods, thickets, clearings, fields, roadsides. [Geum fragarioides (Michaux) Smedmark]



WEIGELA (Family: Caprifoliaceae)


WEIGELA FLORIBUNDA (Siebold & Zuccarini) K. Koch - Crimson Weigela. 2n = 36.


Thickets, rocky roadsides. From Japan.



WISTERIA (Family: Fabaceae)


WISTERIA FLORIBUNDA (Willdenow) de Candolle - Japanese Wisteria. 2n = 16.


Woodland margins, fields, thickets. From Japan, Korea.


WISTERIA FRUTESCENS (Linnaeus) Poiret - American Wisteria. 2n = 16.


Woodland margins, roadsides. From farther south. [W. MACROSTACHYA (Torrey & A. Gray) Nuttall ex B.L. Robinson & Fernald]


WISTERIA SINENSIS (Sims) de Candolle - Chinese Wisteria. 2n = 16, 32.


Woods, woodland margins, roadsides. From China.



WOLFFIA (Family: Araceae)


Wolffia borealis (Engelmann) Landolt & Wildi ex Gandhi, Wiersema & Brouillet - . 2n = 20, 22, 30, 40.


Floating on quiet waters of ditches, ponds, lakes and streams. [W. punctata misapplied]


WOLFFIA BRASILIENSIS Weddell - . 2n = 20, 40, 42, 50, 60, 80.


Floating on quiet waters. From farther south. [W. PAPULIFERA C.H. Thompson]


Wolffia columbiana H. Karsten - . 2n = 30, 40, 42, 50, 70.


Quiet, mostly basic waters of lakes, ponds, ditches and streams.



WOLFFIELLA (Family: Araceae)


Wolffiella gladiata (Hegelmaier) Hegelmaier - . 2n = 40, 42.


Quiet, acidic waters. [W. floridana (J.D. Smith) C.H. Thompson]



WOODSIA (Family: Woodsiaceae)


Woodsia alpina (Bolton) Gray - Northern Woodsia. 2n = 156, 164.


Cool, calcareous (sometimes slaty) rock crevices. [W. alpina var. bellii G. Lawson]


Woodsia glabella R. Brown ex Richardson - Smooth Woodsia. 2n = 78.


Moist, shaded crevices of calcareous rocks.


Woodsia ilvensis (Linnaeus) R. Brown - Rusty Woodsia. 2n = 78, 82.


Dry, often exposed, cliffs and talus.


Woodsia obtusa (Sprengel) Torrey subsp. obtusa - Blunt-lobed Woodsia. 2n = 152.


Shaded ledges, rocky woods, mostly in calcareous soils.


WOODSIA hybrids


Woodsia x gracilis (G. Lawson) Butters.


[W. alpina (Bolton) S.F. Gray X W. ilvensis (Linnaeus) R. Brown]



WOODWARDIA (Family: Blechnaceae)


Woodwardia areolata (Linnaeus) T. Moore - Netted Chain Fern. 2n = 70.


Swamps, boggy woods, in acid soils.


Woodwardia virginica (Linnaeus) Smith - Virginia Chain Fern. 2n = 70.


Acid swamps, bogs, wet, wooded bottoms.





Designed by Ray Angelo. Revised Jan. 18, 2017