Order Ericales

Family Polemoniaceae Juss. – Jacob's-ladder family, phlox family

Genus Polemonium L. – Jacob's ladder

• (+)Polemonium caeruleum L. – Jacob's Ladder, Greek valerian - Perennial. An upland glade near the Verkhneye Ershovskoe lake.

Family Primulaceae Vent.

Genus Glaux L.

• Glaux maritima L. – sea milkwort, sea milkweed, black saltwort - Perennial. Upper littoral, wet seashore meadows; common.

Genus Lysimachia L.

• (#)Lysimachia vulgaris L. – Garden loosestrife, Yellow loosestrife - Perennial. Non-blooming plants reported in the damp birch forest near the Ershovskie lakes. It is unclear, whether emergence of this species was due to human activity.

Genus Naumburgia Moench

• Naumburgia thyrsiflora (L.) Reichenb. – Tufted Loosestrife - Perennial. Boggy берега and сплавины around the Ershovskie lakes. Forms a thicket at the place where a brook runs out of the Nizhnee Ershovskoe lake.

Genus Primula L. – Primrose

• Primula nutans Georgi subsp. finmarchica (Jacq.) Hult. (P. finmarchica Jacq.) – Siberian primrose - Perennial. Wet seashore meadows; often.
• (+)(#)Primula veris L. s. l. (P. macrocalyx Bunge) – Cowslip - Perennial. Reported on an upland meadow near the Verkhneye Ershovskoe lake.

Genus Trientalis L. – starflower, wintergreen

• Trientalis europaea L. – chickweed wintergreen, Arctic starflower - Perennial. Forests, meadows; common.

Family Ericaceae Juss. – heath family, heather family (including Pyrolaceae Dumort. and Empetraceae S.F. Gray)

Subfamily Monotropoideae Arnott

Genus Moneses Salisb.

• Moneses uniflora (L.) A. Gray – One-flowered Wintergreen, Single Delight St. Olaf's Candlestick - Perennial. Motley-grass and green-moss forests, bog edges; often.

Genus Orthilia Rafin.

• Orthilia secunda (L.) House [Ramischia secunda (L.) Garcke] – sidebells wintergreen - Perennial. Forests – often; on bogs – rare.

Genus Pyrola L. – wintergreen

• Pyrola chlorantha Sw. (P. virescens Schweigg.) – Green-Flowered Wintergreen - Perennial. Dry pine forests, motley grass forests, seashore glades; quite rare.
• Pyrola media Sw. – Intermediate Wintergreen - Perennial. In wet forests; rare.
• Pyrola minor L. – snowline wintergreen, lesser wintergreen, common wintergreen - Perennial. Forests, sparse forests, bog edges, seashore glades; often.
• Pyrola rotundifolia L. – Round-leaved Wintergreen - Perennial. In wet forests; rare.

Subfamily Arbutoideae Niedenzu

Genus Arctostaphylos Adans. – Manzanitas and bearberries

• Arctostaphylos uva-ursi (L.) Spreng. – Bearberry - A humifuse undershrub. Rocks, pineries on rocks; often.

Genus Arctous (A. Gray) Niedenzu

• Arctous alpina (L.) Niedenzu – Alpine Bearberry - Undershrub. Pineries on rocks, bogs, on open-space seashore rocks; rare, but in some places dominant (square 28).

Subfamily Ericoideae Link

Genus Calluna Salisb. – heather

• Calluna vulgaris (L.) Hull – Common Heather, ling, heather - Undershrub. Forests, bogs; common.

Genus Empetrum L. – Crowberry

• Empetrum hermaphroditum Hagerup – Undershrub. Forests, rocks, bogs; common, abundant. One of the main species forming an extensive cover. This plant is often regarded as a subspecies of E. nigrum.
• (#)Empetrum nigrum L. – black crowberry - Undershrub. Very rare in the same habitats with the previous species.

Genus Ledum L. – Labrador Tea

• Ledum palustre L. – Marsh Labrador tea, northern Labrador tea or wild rosemary - Bush. Forests, bogs; common. Recently, there is a suggestion to correctly place all species of the genus Ledum in the genus Rhododendron.

Subfamily Vaccinioideae Arnott

Genus Andromeda L.

• Andromeda polifolia L. – Bog-rosemary - Undershrub Bogs, marshy forests; common.

Genus Chamaedaphne Moench – Leatherleaf

• Chamaedaphne calyculata (L.) Moench – Leatherleaf - Bush. Bogs; rare.

Genus Oxycoccus Adans. – Cranberry

• Oxycoccus palustris Pers. (Vaccinium oxycoccus L.) – Common Cranberry or Northern Cranberry - Undershrub. Seashore and coastal sphagnum bogs; often.
• Oxycoccus microcarpus Turcz. ex Rupr. [Vaccinium microcarpum (Turcz. ex Rupr.) Schmalh.] – Small Cranberry – Undershrub. Bogs, marshy forests; common.

Genus Vaccinium L.

• Vaccinium myrtillus L. – Bilberry - Undershrub Forests, bogs; common.
• Vaccinium uliginosum L. – Bog Bilberry, Northern Bilberry - Bush., undershrub Forests, bogs; common.
• Vaccinium vitis-idaea L. – Cowberry, lingonberry - Undershrub Forests, bogs, rocks; common.

rus:Порядок Ericales – Верескоцветные