PDFWAC 16-302-470
Seed standards for woody plants, forbs, and other reclamation species.
Seed standards for the production of woody plants, forbs, and other reclamation species are as follows:
FND = Foundation class
REG = Registered class
RNW = Restricted Noxious Weed Seed Limit
Crop/Common Name(s) | Minimum % Germination | Minimum % Pure seed | Maximum % Inert | Maximum % Weeds (i) | Maximum % Other crops | |||||
Class | F/R | C | F/R | C | F/R | C | F/R | C | F/R | C |
Sanguisorba minor • Small burnet | 80.00 | 80.00 | 95.00 | 95.00 | 5.00 | 5.00 | 0.10 | 0.20 | 0.10 | 0.25 |
Dalea purpurea • Purple prairie clover | 60.00 (ii) | 60.00 (ii) | 95.00 | 95.00 | 5.00 | 5.00 | 0.20 | 0.50 | 0.10 | 0.25 |
Purshia tridentata •Bitterbrush •antelope | 75.00 | 75.00 | 95.00 | 95.00 | 5.00 | 5.00 | 0.10 | 0.20 | 0.40 | 1.25 |
includes 0.15 (vii) | includes 0.50 (vii) | |||||||||
Balsamorhiza sagittata • Balsamroot • arrowleaf | 85.00 | 85.00 | 99.00 | 98.00 | 1.00 | 2.00 | 0.02 | 0.04 | 0.10 | 0.20 |
Sclerotinia None found | Sclerotinia 1/lb | |||||||||
Atriplex canescens • Saltbush • four-wing | 30.00 | 30.00 | 85.00 | 85.00 | 15.00 | 15.00 | 0.25 | 0.50 | 0.40 | 1.25 |
includes 0.15 (vii) | includes 0.50 (vii) | |||||||||
Gaillardia aristate • Blanket-flower | 60.00 | 60.00 | 90.00 | 90.00 | 10.00 | 10.00 | 0.20 | 1.00 | 0.20 | 2.00 |
includes 0.10 (vii) | includes 0.25 (vii) | |||||||||
Liatris pycnostachya • Prairie blazingstar • Thickspike Gayfeather | 60.00 | 60.00 | 85.00 | 80.00 | 15.00 | 20.00 | 0.30 | 0.30 | 0.20 | 2.00 |
includes 0.10 (vii) | includes 0.25 (vii) | |||||||||
Bassia prostrata • Forage kochia | 35.00 | 35.00 | 65.00 | 65.00 | 35.00 | 35.00 | 0.10 | 0.20 | 9/lb | 25/lb |
RNW 45/lb | RNW 91/lb | |||||||||
Artemisia ludoviciana • Louisiana sagebrush • White sagebrush • Columbia river wormwood | 30.00 | 30.00 | 80.00 | 80.00 | 20.00 | 20.00 | 0.25 | 0.50 | 0.40 | 1.25 |
includes 0.25 (vii) | includes 0.75 (vii) 2.00 (iii) | |||||||||
Artemisia tridentata • Big mountain sagebrush • Big sagebrush • Big basin sagebrush • Wyoming sagebrush | 50.00 | 50.00 | 10.00 | 10.00 | 90.00 | 90.00 | 0.25 | 0.50 | 0.40 | 1.25 |
includes 0.10 (vii) | includes 0.25 (vii) 2.00 (iii) | |||||||||
Salvia azurea • Pitcher sage (salvia) • Blue sage | 25.00 | 25.00 | 90.00 | 90.00 | 10.00 | 10.00 | 0.30 | 0.30 | 0.40 | 1.25 |
includes 0.10 (vii) | includes 0.25 (vii) 2.00 (iii) | |||||||||
Astragalus cicer L. • Milkvetch, cicer | 75.00 | 70.00 | 99.00 | 98.00 | 1.00 | 2.00 | 0.01 | 0.20 | 0.01 | 0.20 |
includes Sclerotia 0.10 | includes Sclerotia 0.10 | RNW None found | RNW 10/lb | includes 0.10 (vii) | includes 0.50 (vii) | |||||
Melilotus officinalis • Sweet clover | 75.00 | 70.00 | 99.00 | 98.00 | 1.00 | 2.00 | 0.01 | 0.20 | 0.01 | 0.20 |
includes Sclerotia 0.10 | includes Sclerotia 0.10 | RNW None found | RNW 18/lb | includes 0.10 (vii) | includes 0.50 (vii) | |||||
Lupine spp. • Lupine | 80.00 | 80.00 | 98.00 | 98.00 | 2.00 | 2.00 | 0.25 | 0.50 | 0.10 | 0.40 |
RNW None found | RNW 9/lb | |||||||||
Cercocarpus montanus • Mountain mahogany | 60.00 | 60.00 | 85.00 | 85.00 | 15.00 | 15.00 | 0.25(a) | 0.50(a) | 0.40 0.15(g) | 1.25 0.75(g) |
Penstemon spp. | 80.00 (iv) | 80.00 (iv) | 90.00 | 90.00 | 10.00 | 10.00 | 0.20 | 1.00 | 0.20 (iii) | 2.00 (iii) |
includes 90/lb (v) | includes 180/lb (v) | |||||||||
Penstemon palmeri • Rocky Mountain penstemon | 80.00 (iv) | 80.00 (iv) | 90.00 | 90.00 | 10.00 | 10.00 | 0.20 | 1.00 | 0.20 (iii) | 2.00 (iii) |
includes 90/lb (v) | includes 180/lb (v) | |||||||||
Penstemon strictus • Rocky Mountain penstemon • Rocky Mountain beardtongue | 80.00 (iv) | 80.00 (iv) | 90.00 | 90.00 | 10.00 | 10.00 | 0.20 | 1.00 | 0.20 (iii) | 2.00 (iii) |
includes 90/lb (v) | includes 180/lb (v) | |||||||||
Ratibida columnifera • Prairie-coneflower | 60.00 | 60.00 | 90.00 | 90.00 | 10.00 | 10.00 | 0.20 | 1.00 | 0.20 (iii) | 2.00 (iii) |
includes 0.10 (vii) | includes 2.00 (vii) | |||||||||
Carthamus tinctorius • Safflower | 80.00 | 80.00 | 99.00 | 98.00 | 1.00 | 2.00 | FND None found | 0.20 | FND None found | 0.10 |
REG 0.10% | REG 1/1lb (vi) | includes 1/1lb (vi) | ||||||||
Onobrychis viciifolia • Sainfoin | NS | 80.00 | 99.00 | 99.00 | 1.00 | 2.00 | 0.10 (i) | 0.20 | None found | 0.10 |
RNW None found | RNW 9/lb | |||||||||
Sporobolus rigidus • Sand-reed, prairie | 70.00 | 70.00 | 90.00 | 90.00 | 10.00 | 10.00 | 0.10 | 0.25 | 0.10 | 0.50 |
Krascheninnikovia lanata • Winterfat | 40.00 | 40.00 | 60.00 | 60.00 | 40.00 | 40.00 | 0.25 | 0.50 | 0.40 | 1.25 |
includes 0.15 (vii) | includes 0.75 (vii) | |||||||||
(i) | Must be free prohibited and restricted noxious weed seed. |
(ii) | Includes total germination and hard seed. |
(iii) | Never to exceed 0.25% other forbs. |
(iv) | Total viability by TZ. |
(v) | Sweet clover. |
(vi) | Barley, oats, rye, triticale, or wheat. |
(vii) | Other varieties or kinds. |
[Statutory Authority: RCW 15.49.005, [15.49].021, [15.49].310, [15.49].370, 15.140.030, and chapter 15.49 RCW. WSR 25-09-035, s 16-302-470, filed 4/9/25, effective 5/10/25. Statutory Authority: RCW 15.49.005, [15.49].021, [15.49].310, [15.49].370, and chapter 34.05 RCW. WSR 18-19-017, § 16-302-470, filed 9/10/18, effective 10/11/18. Statutory Authority: RCW 15.120.030(3), 15.49.021, 15.49.310, and chapter 34.05 RCW. WSR 17-08-090, § 16-302-470, filed 4/5/17, effective 5/6/17. Statutory Authority: RCW 15.49.005, 15.49.081, 15.49.310, 15.49.370(3), and chapter 34.05 RCW. WSR 14-20-050, § 16-302-470, filed 9/25/14, effective 10/26/14. Statutory Authority: RCW 15.49.005, 15.49.081, 15.49.310, 15.49.370(3) and chapter 17.24 RCW. WSR 00-24-077, § 16-302-470, filed 12/4/00, effective 1/4/01.]