Research


Botany

Since 2001, Green Diamond Resource Company has been conducting pre-disturbance floristic surveys of Timber Harvest Plans (THPs) located all across the ownership. In addition to surveying THPs, the botany department has also surveyed unique landscape features such as grasslands, rock outcrops, lakes, wetlands, serpentine ridges and mountains as a way to better understand the landscape and distribution of sensitive and uncommon plant taxa present on Green Diamond Resource Company lands.

The following table details the various sensitive and uncommon plant taxa that have been detected over the course of conducting these surveys:

Lilium bolanderi

Lilium bolanderi

Darlingtonia californica

Darlingtonia californica

Erythronium revolutum

Erythronium revolutum

Monotropa uniflora

Monotropa uniflora

Scientific Name Common Name California Rare Plant Rank
Arctostaphylos nortensis Del Norte Manzanita 4.3
Asarum marmoratum Marbled wild-ginger 2B.3
Astragalus umbraticus Bald Mountain milk-vetch 2B.3
Bensoniella oregona Bensoniella 1B.1
Cardamine angulata Seaside bittercress 2B.1
Carex arcta Northern clustered sedge 4.3
Calamagrostis bolanderi Bolander's reed grass 4.2
Carex leptalea Bristle-stalked sedge 2B.2
Carex praticola Northern meadow sedge 2B.2
Cornus canadensis Bunchberry 2B.2
Coptia laciniata Oregon goldthread 4.2
Cypripedium californicum California lady's-slipper 4.2
Cypripedium fasciculatum Clustered lady's-slipper 4.2
Cypripedium montanum Mountain lady's-slipper 4.2
Darlingtonia californica California pitcherplant 4.2
Erigeron maniopotamicus Howell's fawn lily 1B.2
Erythronium howellii Mad River fleabane daisy 1B.3
Erythronium oregonum Giant fawn lily 2B.2
Erythronium revolutum Coast fawn lily 2B.2
Gilia capitata ssp. pacifica Pacific gilia 1B.2
Iliamna latibracteata California globe mallow 1B.2
Kopsiopsis hookeri Small groundcone 2B.3
Lilium bolanderi Bolander's lily 4.2
Lilium kelloggii Kellogg's lily 4.3
Lilium rubescens Redwood lily 4.2
Lilium washingtonianum Purple-flowered Washington lily 4.3
Listera cordata Heart-leaved twayblade 4.2
Lycopodium clavatum Running-pine 4.1
Mitellastra caulescens Leafy-stemmed mitrewort 4.2
Montia howellii Howell's montia 2B.2
Monotropa uniflora Ghost-pipe 2B.2
Oxalis suksdorfii Suksdorf's wood-sorrel 4.3
Packera bolanderi Seacoast ragwort 2B.2
Piperia candida White-flowered rein orchid 1B.2
Pityopus californicus California pinefoot 4.2
Pleuropogon refractus Nodding semaphore grass 4.2
Platanthera stricta Slender bog-orchid 4.2
Prosartes parvifolia Siskiyou bells 1B.2
Ribes laxiflorum Trailing black currant 4.3
Sanguisorba officinalis Great burnet 2B.2
Sidalcea malachroides Maple-leaved checkerbloom 4.2
Sidalcea malviflora ssp. patula Siskiyou checkerbloom 1B.2
Sidalcea oregana ssp. eximia Coast checkerbloom 1B.2
Thermopsis gracilis Slender false lupine 4.3
Thermopsis robusta Robust false lupine 1B.2
Tiarella trifoliata var. trifoliata Trifoliate laceflower 3.2
Usnea longissima Methuselah's beard lichen 4.2
Veratrum insolitum Siskiyou false-hellebore 4.3
Wyethia longicaulis Humboldt County wyethia 4.3

For all plants with a California Rare Plant Rank of 1 or 2, Green Diamond Resource Company develops mitigation and implements plant protection measures to ensure that they are not significantly impacted. All sensitive and uncommon plant data is submitted on an annual basis to the California Natural Diversity Database (CNDDB).

Many plant populations are monitored on an annual basis to check on the health, vigor, and overall quality of these plants. This information is also provided to CNDDB.

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