(282)__Quercus montana, commonly known as chestnut oak;

(283)__Ranunculus ambigens, commonly known as water- plantain spearwort;

(284)__Ranunculus fascicularis, commonly known as early crowfoot;

(285)__Ranunculus gmelinii, commonly known as small yellow water crowfoot;

(286)__Ranunculus lapponicus, commonly known as Lapland buttercup;

(287)__Rhododendron lapponicum, commonly known as Lapland rosebay;

(288)__Rhododendron maximum, commonly known as great rhododendron;

(289)__Rhododendron viscosum, commonly known as clammy azalea;

(290)__Rhynchospora capillacea, commonly known as horned beak-rush;

(291)__Rhynchospora macrostachya, commonly known as tall beak-rush;

(292)__Rosa blanda var. glabra, commonly known as northern rose;

(293)__Rubus arenicola, commonly known as sand- dwelling dewberry;

(294)__Sagittaria calycina, commonly known as spongy arrow-head;

(295)__Sagittaria rigida, commonly known as stiff arrow-head;

(296)__Salicornia bigelovii, commonly known as dwarf glasswort;

(297)__Salicornia maritima, commonly known as Samphire

(298)__Salix arctophila, commonly known as Arctic willow;