INTEGRIFOLIA ssp. INTEGRIFOLIA

Synonyms :

Sedum atropurpureum  Turczaninow (1840) / Rhodiola atropurpurea  (Turczaninow) Trautvetter

& C.A.Meyer (1856) / Sedum rhodiola var. atropurpureum  (Turczaninow) Maximowicz (1883) /

Sedum rosea var. atropurpureum  (Turczaninow) Praeger (1921) / Rhodiola rosea ssp. atropurpurea (Turczaninow) Jacobsen (1973) / Tolmachevia atropurpurea (Turczaninow) A.Löve & D.Löve (1976) / Sedum integrifolium var. atropurpureum  (Turczaninow) Stephenson (1994) 
 

Sedum atropurpureum var. caespitosum  Ledebour (1843) / Rhodiola caespitosa  (Ledebour) Nakai (1938)

Sedum rhodiola var. humile  Regel & Tiling (1858) / Rhodiola caespitosa fa humilis  (Regel & Tiling) Nakai (1938)

Sedum rhodiola var. involucratum  Regel & Tiling (1858) / Rhodiola caespitosa fa involucrata  (Regel & Tiling) Nakai (1938)

Sedum rhodiola var. lanceolatum  Regel & Tiling (1858) / Rhodiola caespitosa fa lanceolata (Regel & Tiling) Nakai (1938)

Sedum rhodiola var. ovatum  Regel & Tiling (1858) / Rhodiola caespitosa fa ovata  (Regel & Tiling) Nakai (1938)

Sedum rhodiola var. tenuifolium  Regel & Tiling (1858)

Sedum frigidum  Rydberg (1901) / Sedum rosea var. frigidum  (Rydberg) Hultén (1945)

Sedum polygamum  Rydberg (1901) / Rhodiola polygama  (Rydberg) Britton & Rose (1903) / Sedum rosea var. polygamum  (Rydberg) Fröderström (1930) / Rhodiola rosea ssp. polygama  (Rydberg) Jacobsen (1973)

Rhodiola alaskana  Rose (1903) / Sedum alaskanum  (Rose) J.K.Henry (1915) / Sedum rosea

var. alaskanum  (Rose) Berger (1930) / Rhodiola rosea var. alaskana  (Rose) Jacobsen (1973)

Sedum rosea var. aleuticum  Fröderström (1937)

Rhodiola borealis  Borissova (1939) / Rhodiola rosea ssp. borealis  (Borissova) A.P.Khokhrjakov

& Kurajev (1992)

Distribution : Arctic Siberia, Okhotsk, Sakhalin, Kuriles, Kamtchatka, Aleutian Islands, western North America (USA, Canada).

Description (according to H. Ohba in IHSP, 2003) :

Dioecious, 5 - 30 cm tall. 

Rhizomes stout, sparsely branched, 0.5 - 2 cm in diameter.

Flowering stems 1 - 6, 1.5 - 6 mm in diameter, glabrous, smooth to papillate.

Leaves approximate throughout, ascending to spreading, sessile, thickly herbaceous, oblanceolate to oblong-obovate, 0.5 - 2 (-3) x 0.2 - 1.3 cm, spinach-green, glabrous, smooth, tip obtuse to acute, base round to truncate, margin entire to coarsely and interruptedly serrate.

Inflorescences densely 8- to 70-flowered, 0.5 - 2 x 1 - 8 cm in diameter, pedicels 1.5 - 2.5 (-3) mm, smooth.

Flowers 3 - 6 mm in diameter, calyx green but often reddish, 3 – 4.1 mm, glabrous, sepals linear to linear-subulate, 1 – 2.8 mm, erect, petals purplish-red to crimson, narrowly spatulate (male) or linear-subulate (female), 2.4 – 4 (-4.3) mm, spreading (male) or suberect (female), stamens slightly longer than the petals, anthers red-purple.

Flowering time : May - July.