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What

coastal woodfern Dryopteris arguta

Observer

fivecreeks

Date

May 6, 2012

Description

Wood fern is widespread in the oak understory. It is stiffer and less delicate than lady fern, which is rare in the area.

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What

Miner's lettuce Claytonia perfoliata

Observer

fivecreeks

Date

May 6, 2012

Description

Miner's lettuce, with crunchy round leaves and tiny white flowers, is a fairly common groundcover in areas with moisture and a mix of shade and sun.

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Galiumporrigenshna20120409a

What

graceful bedstraw Galium porrigens

Observer

fivecreeks

Date

May 2, 2012

Description

Graceful bedstraw is reasonably common in semi-shade to almost full sun, growing by itself or supported on shrubs. But you have to look closely because it is so tiny.

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Wyethiaangustifoliahna20120420_14

What

narrowleaf mule-ears Wyethia angustifolia

Observer

fivecreeks

Date

May 2, 2012

Description

Narrowleaf mule-ears, with sunflower-like blossoms rising slightly above clumps of wave, rather strap-like leaves, forms striking patches in grasslands.

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Calystegiahna20120425_07b

What

Pacific false bindweed Calystegia purpurata

Observer

fivecreeks

Date

May 2, 2012

Description

Pacific false bindweed, whose flowers and heart-like leaves show its close relationship to morning glories, is a tough, drought-tolerant trailing vine.

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Saniculabipinnatfidahna20120425_25

What

purple sanicle Sanicula bipinnatifida

Observer

fivecreeks

Date

May 6, 2012

Description

Purple sanicle, with finely divided, blue-green, shiny leaves, is much less common than its yellow-flowered cousin. It may prefer more sun.

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Saniculacrassicaulishna20120505_114

What

snakeroot Sanicula crassicaulis

Observer

fivecreeks

Date

May 6, 2012

Description

Pacific sanicle, with ball-like yellow flowers and rounded, three-part leaves, is a common understory plant that also forms large patches along trails in semi-shade.

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Viciagiganteahna20120505_106

What

giant vetch Vicia gigantea

Observer

fivecreeks

Date

May 6, 2012

Description

Giant vetch, growing in thickets in damp areas, is easily recognized by warm pink blossoms and large "fronds" with 16 or more leaflets.

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Symphoricarposmollishna20120505_46

What

creeping snowberry Symphoricarpos mollis

Observer

fivecreeks

Date

May 6, 2012

Description

Common groundcover on shady slopes, especially north facing. Blooming.

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Marahhna20120425_12

What

California manroot Marah fabaceus

Observer

fivecreeks

Date

May 6, 2012

Description

Common in shady woods and wood edges, blooming.

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Triteliahna20120505_23

What

Ithuriel's spear Triteleia laxa

Observer

fivecreeks

Date

May 6, 2012

Description

Blooming in NW grassland, with Stipa and blue-eyed grass.

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Physocarpuscapitatushna20120505_82

What

Pacific ninebark Physocarpus capitatus

Observer

fivecreeks

Date

May 6, 2012

Description

Large clumps along and above lower north creek, blooming.

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Observer

fivecreeks

Date

Apr 6, 2012

Description

Tiny but tough annual lupine growing in full sun in rocky service road.

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What

Oakland mariposa lily Calochortus umbellatus

Observer

fivecreeks

Date

Apr 6, 2012

Description

Tiny rare mariposa lily found in few locations. Location is inaccurate due to rarity.

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What

bracken Pteridium aquilinum

Observer

fivecreeks

Date

Mar 26, 2012

Description

Large feathery fern with prominent stalk. More common at edges and in scrub than in forest, as here.

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What

Douglas iris Iris douglasiana

Observer

fivecreeks

Date

Apr 1, 2012

Description

On level above quarry, with other monocots

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blue dicks Dichelostemma capitatum

Observer

fivecreeks

Date

Apr 1, 2012

Description

Grassy meadows along fire road north of King Court entrance

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What

California blackberry Rubus ursinus

Observer

fivecreeks

Date

Mar 19, 2012

Description

Native blackberry rivals poison oak as the most common understory plant in the Hillside Natural Area. This patch is in sun near willows along a creek, but it also flourishes under oaks. It is easily recognized by having prickles rather than thorns -- if you can grasp it without pain, it's native blackberry.

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What

bracken Pteridium aquilinum

Observer

fivecreeks

Date

Mar 26, 2012

Description

Under oaks S. of N. Regency entrance, in open understory with Ribes menziesii and californicum, hazelnut (Corylus cornuta), Rubus ursinus. Bracken, like sword fern, seems relatively uncommon here. Wood and goldback fern are more common.

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What

bluewitch nightshade Solanum umbelliferum

Observer

fivecreeks

Date

Mar 26, 2012

Description

Large gray shrub, growing with Solanum americanum, poison oak, and native blackberry, near top of Hillside Natural Area S. of entrance at end of Regency Court, NE of oak forest.

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What

goldback fern Pentagramma triangularis

Observer

fivecreeks

Date

Mar 18, 2012

Description

On trail cut mini-bluff short distance in from Douglas Drive entrance; also elsewhere in steep, dry areas. Old fronds and tiny new ones uncurled after rain.

Note map here shows nonexistent road overlay; trail is isocontour along hill.

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Observer

fivecreeks

Date

Mar 18, 2012

Description

Above trail in from Douglas, starting at channel crossing, with tangle of native blackberry, honeysuckle, Erharta, more. Just beginning to bloom. Some pink, some white.

Satellite map shows nonexistent straight road overlay; trail is isocontour below.

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What

Common Yarrow Achillea millefolium

Observer

fivecreeks

Date

Mar 4, 2012

Description

Yarrow flourishes throughout the area, often in surprisingly shady places, although this was in full sun.

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Observer

fivecreeks

Date

Mar 4, 2012

Description

Needlegrass is just beginning to flower; this is from very high on the hill, in full sun. I don't know whether this is Stipa lepida, cernua, or pulchra, but it's lovely to see the long, delicate needles flashing in the breeze. At the foot of the clump is last fall's goldenrod.

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What

hedge nettles Genus Stachys

Observer

fivecreeks

Date

Mar 8, 2012

Description

Stachys is one of the most common groundcover plants. This one, first I saw blooming in spring, looks like Stachys bullata, but could be Stachys rigida -- experts have identified both in the area, and they are difficult to tell apart

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What

hairy gumweed Grindelia hirsutula

Observer

fivecreeks

Date

Mar 2, 2012

Description

Blooming above high service road, with Agoseris, Lupine, and Sidalcea.

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What

Western Blue-eyed Grass Sisyrinchium bellum

Observer

fivecreeks

Date

Mar 2, 2012

Description

Small patch on flat above old quarry, between service road and cliff.

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What

Dusky-footed Woodrat Neotoma fuscipes

Observer

fivecreeks

Date

Feb 26, 2012

Description

Saw nest only, not rat. Several nests in oak forest.

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What

dwarf checkermallow Sidalcea malviflora

Observer

fivecreeks

Date

Feb 26, 2012

Description

Meadow above high service road. Not keyed to subspecies

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What

California hazelnut Corylus cornuta californica

Observer

fivecreeks

Date

Feb 20, 2012

Description

Common in oak forest

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