
401. Procumbent Pearlwort
Sagina procumbens

402. Palmer Amaranth
Amaranthus palmeri

403. Sticky Cinquefoil
Drymocallis glandulosa

404. Western Snakeroot
Ageratina occidentalis

405. Salt Spring Checkerbloom
Sidalcea neomexicana

406. Canyon Silktassel
Garrya veatchii

407. Southern Naiad
Najas guadalupensis

408. Philadelphia Fleabane
Erigeron philadelphicus

409. Fringed Twinevine
Funastrum cynanchoides

410. Longstem Buckwheat
Eriogonum elongatum

411. Coastal Pricklypear
Opuntia littoralis

412. Thistle Sage
Salvia carduacea

413. Great Horsetail
Equisetum telmateia

414. Longleaf Bush Lupine
Lupinus longifolius

415. Threadleaf Brodiaea
Brodiaea filifolia

416. Alkali Mallow
Malvella leprosa

417. Mountain Indian Paintbrush
Castilleja parviflora

418. Water Knotweed
Persicaria amphibia

419. Spike Bentgrass
Agrostis exarata

420. Mountain Sweet Cicely
Osmorhiza berteroi

421. Fragrant Flatsedge
Cyperus odoratus

422. Brown’s Peony
Paeonia brownii

423. Southern Suncup
Camissoniopsis bistorta

424. Chinook Brome
Bromus laevipes

425. False Daisy
Eclipta prostrata

426. Tomcat Clover
Trifolium willdenovii

427. Fire Poppy
Papaver californicum

428. Bugle Hedgenettle
Stachys ajugoides

429. Hairy Yerba Santa
Eriodictyon trichocalyx

430. Whisperingbells
Emmenanthe penduliflora

431. Woollypod Milkweed
Asclepias eriocarpa

432. Pacific Blacksnakeroot
Sanicula crassicaulis

433. Hoary Tansyaster
Dieteria canescens

434. Sand Pygmyweed
Crassula connata

435. Interior California Buckwheat
Eriogonum fasciculatum var. polifolium

436. California Tea
Rupertia physodes

437. San Joaquin Snakeweed
Gutierrezia californica

438. Pointed Rush
Juncus oxymeris

439. Pinebush
Ericameria pinifolia

440. California Loosestrife
Lythrum californicum

441. Leafy Fleabane
Erigeron foliosus

442. Splendid Mariposa Lily
Calochortus splendens

443. Longleaf Pondweed
Potamogeton nodosus

444. Menzies’ Goldenbush
Isocoma menziesii

445. California Plantain
Plantago erecta

446. Silver Cholla
Cylindropuntia echinocarpa

447. Lesser Water-Parsnip
Berula erecta

448. Water Parsley
Oenanthe sarmentosa

449. California Dandelion
Agoseris grandiflora

450. California Croton
Croton californicus

451. Virginia Pepperweed
Lepidium virginicum

452. Seaside Petunia
Calibrachoa parviflora

453. Vinegarweed
Trichostema lanceolatum

454. Swamp Smartweed
Persicaria hydropiperoides

455. Cooper’s Popcornflower
Plagiobothrys collinus

456. Marsh Baccharis
Baccharis douglasii

457. Tower Rockcress
Turritis glabra

458. Redskin Onion
Allium haematochiton

459. Nested Polypody
Polypodium calirhiza

460. Swamp Sedge
Carex senta

461. Mountain Brome
Bromus marginatus

462. Slender Woolly Buckwheat
Eriogonum gracile

463. Threadleaf Crowfoot
Ranunculus trichophyllus

464. Sierra Snapdragon
Sairocarpus multiflorus

465. Palmer’s Goldenbush
Ericameria palmeri

466. Santa Catalina Mariposa Lily
Calochortus catalinae

467. California Suncup
Eulobus californicus

468. Broad-Glumed Wheatgrass
Elymus violaceus

469. Nuttall’s Sunflower
Helianthus nuttallii

470. Pacific Pea
Lathyrus vestitus

471. Plummer’s Mariposa Lily
Calochortus plummerae

472. Scouler’s St. John’s Wort
Hypericum scouleri

473. Pale Spikerush
Eleocharis macrostachya

474. Tall Flatsedge
Cyperus eragrostis

475. Santa Barbara Sedge
Carex barbarae

476. Brown-Headed Rush
Juncus phaeocephalus

477. Smooth Horsetail
Equisetum laevigatum

478. Smooth Flatsedge
Cyperus laevigatus

479. Dotted Smartweed
Persicaria punctata

480. Hairy Water-Clover
Marsilea vestita

481. Wild Cucumber
Marah macrocarpa

482. Chaparral Pea
Pickeringia montana

483. Sawtooth Goldenbush
Hazardia squarrosa

484. Toad Rush
Juncus bufonius

485. Prairie Wedgescale
Sphenopholis obtusata

486. Neckweed
Veronica peregrina

487. Horseweed
Erigeron canadensis

488. Green Carpetweed
Mollugo verticillata

489. Prostrate Spurge
Euphorbia prostrata

490. American Mistletoe
Phoradendron leucarpum

491. Tar Vine
Boerhavia coccinea

492. Flatspine Bur Ragweed
Ambrosia acanthicarpa

493. American Black Nightshade
Solanum americanum

494. Blue Fiestaflower
Pholistoma auritum

495. Annual Wall-Rocket
Diplotaxis muralis

496. Small Venus’ Looking-Glass
Triodanis perfoliata subsp. biflora

497. Bigelow’s Spikemoss
Selaginella bigelovii

498. Spotted Hideseed
Eucrypta chrysanthemifolia

499. Sacapellote
Acourtia microcephala

500. Danny’s Skullcap
Scutellaria tuberosa

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