KALMIA (Family: Ericaceae)

Kalmia angustifolia Linnaeus var. angustifolia - Sheep Laurel. 2n = 24.

Wet or dry, acidic, open soil, Sphagnum bogs, rock ledges.

Kalmia latifolia Linnaeus - Mountain Laurel. 2n = 24.

Acidic, rocky or sandy, deciduous woods, thickets.

Kalmia polifolia Wangenheim - Bog Laurel. 2n = 48.

Sphagnum bogs, exposed, rocky areas at high elevations.

Kalmia procumbens (Linnaeus) Gift, Kron & P.F. Stevens ex Galasso, Banfi, & F. Conti - Alpine Azalea. 2n = 24.

Alpine areas. [Loiseleuria procumbens (Linnaeus) Desvaux]

KALOPANAX (Family: Araliaceae)

KALOPANAX SEPTEMLOBUS (Thunberg) Koidzumi - Castor Aralia. 2n = 48.

Moist or rich woodlands, woodland margins. From eastern Asia. [K. PICTUS (Thunberg) Nakai]

KERRIA (Family: Rosaceae)

KERRIA JAPONICA (Linnaeus) de Candolle - Japanese Rose. 2n = 18.

Roadsides. From eastern Asia.

KICKXIA (Family: Plantaginaceae)

KICKXIA ELATINE (Linnaeus) Dumortier - . 2n = 36.

Waste places, in dry, open clay. From Eurasia, northern Africa.

KNAUTIA (Family: Caprifoliaceae)

KNAUTIA ARVENSIS (Linnaeus) Coulter subsp. ARVENSIS - Bluebuttons. 2n = 20, 40.

Fields, roadsides, waste places. From Eurasia.

KNAUTIA ARVENSIS (Linnaeus) Coulter subsp. ROSEA (Baumgarten) Soó - . 2n = ?

Waste places. From Europe. [K. DUMETORUM Heuff]

KOCHIA (Family: Amaranthaceae)

KOCHIA SCOPARIA (Linnaeus) Schrader subsp. SCOPARIA - Summer-cypress. 2n = 18.

Roadsides, waste places. From Eurasia. [K. SCOPARIA var. CULTA (Voss) Farwell; BASSIA SCOPARIA (Linnaeus) A.J. Scott]

KOCHIA SCOPARIA (Linnaeus) Schrader subsp. DENSIFLORA (Turczaninow ex Moquin-Tandon) Aellen - . 2n = 18.

Freight yards, wool waste. From Asia. [K. SCOPARIA var. PUBESCENS Fenzl; K. SCOPARIA var. SUBVILLOSA Moquin-Tandon; K. SIEVERSIANA (Pallas) C. S. Meyer - misapplied in part]

KOELERIA (Family: Poaceae)

KOELERIA MACRANTHA (Ledebour) Schultes - Junegrass. 2n = 14, 28.

Dry soil, sands, open woods, roadsides. From farther west. [K. CRISTATA (Linnaeus) Bertoloni - illegitimate name; K. PYRAMIDATA - misapplied]

KOLKWITZIA (Family: Caprifoliaceae)

KOLKWITZIA AMABILIS Graebner - Beautybush. 2n = 32.

Riverbanks, thickets, roadsides, sandplain scrub, floodplain woods. From China.

KRIGIA (Family: Asteraceae)

Krigia biflora (Walter) S.F. Blake - 2n = 10, 20.

Fields, meadows, woods.

Krigia virginica (Linnaeus) Willdenow - 2n = 10, 20.

Dry fields, rock outcrops, sandy woods and roadsides.

KUMMEROWIA (Family: Fabaceae)

KUMMEROWIA STRIATA (Thunberg) Schindler - Japanese Clover. 2n = 22.

Sandy roadsides, gravel pits. From eastern Asia. [Lespedeza striata (Thunberg) Hooker & Arnott]

Designed by Ray Angelo. Revised Aug. 16, 2019