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{{SPlantbox
| latin_name = ''LATINNAME'' <!--- replace LATINNAME with the actual latin name -->
|familia=Asteraceae
| common_names = <!--- if multiple, list all, if none, leave blank -->
|genus=Grindelia
| growth_habit = ? <!--- tree, shrub, herbaceous, vine, etc -->
|species=camporum
| high = ? <!--- 1m (3 ft) -->
|common_name=Great Valley gumplant, Great Valley gumweed
| wide = <!--- 65cm (25 inches) -->
|name_ref=Wikipedia
| origin = ? <!--- Mexico, S America, S Europe, garden, etc -->
|habit=herbaceous
| poisonous = <!--- indicate parts of plants which are known/thought to be poisonous -->
|habit_ref=Flora - A Gardener's Encyclopedia ISBN 0881925381
| lifespan = <!--- perennial, annual, etc -->
|Max ht box=60
| exposure = ? <!--- full sun, part-sun, semi-shade, shade, indoors, bright filtered (you may list more than 1) -->
|Max ht metric=in
| water = ? <!--- frequent, regular, moderate, drought tolerant, let dry then soak -->
|height_ref=Flora - A Gardener's Encyclopedia ISBN 0881925381
| features = <!--- flowers, fragrance, fruit, naturalizes, invasive -->
|Max wd box=40
| hardiness = <!--- frost sensitive, hardy, 5°C (40°F), etc -->
|Max wd metric=in
| bloom = <!--- seasons which the plant blooms, if it is grown for its flowers -->
|width_ref=Flora - A Gardener's Encyclopedia ISBN 0881925381
| usda_zones = ? <!--- eg. 8-11 -->
|lifespan=perennial, annual
| sunset_zones = <!--- eg. 8, 9, 12-24, not available -->
|life_ref=Flora - A Gardener's Encyclopedia ISBN 0881925381
| color = IndianRed
|exposure=sun
| image = Upload.png <!--- Freesia.jpg -->
|sun_ref=Flora - A Gardener's Encyclopedia ISBN 0881925381
| image_width = 240px <!--- leave as 240px if horizontal orientation photo, or change to 180px if vertical -->
|features=flowers
| image_caption = <!--- eg. Cultivated freesias -->
|flower_season=early summer, mid summer, late summer
| regnum = Plantae <!--- Kingdom -->
|flower_ref=Flora - A Gardener's Encyclopedia ISBN 0881925381
| divisio = <!--- Phylum -->
|flowers=orange, yellow
| classis = <!--- Class -->
|Temp Metric=°F
| ordo = <!--- Order -->
|min_zone=8
| familia = <!--- Family -->
|usda_ref=Flora - A Gardener's Encyclopedia ISBN 0881925381
| genus = Grindelia
|max_zone=10
| species = camporum
|image=Grindelia robusta.jpg
|image_width=200
}}
}}
'''''Grindelia camporum''''' is a species of flowering plant in the [[Asteraceae|daisy family]] known by the common names '''Great Valley gumplant''' and '''Great Valley gumweed'''. It is native to [[California]] and [[Baja California]], where it can be found in a number of habitats. Its range may extend into [[Nevada]]. This hardy plant readily grows in disturbed and altered areas such as ditches and roadsides. It is a gangly weedlike perennial topping two meters in maximum height. Its erect, branching stems are lined with many stiff, wavy-edged, serrated leaves 2 to 3 centimeters long. Atop the stem branches are [[inflorescence]]s of a single large [[Head (botany)|flower head]] up to 3 centimeters wide. The head is a vaguely thistlelike cup of green clawlike [[bract|phyllaries]] that bend downward. The center of the head is filled with yellow disc florets and there are usually many yellow ray florets around the circumference. The flower head fills with a copious white exudate, especially during the early stages of blooming. This plant has a number of historical medicinal uses.
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Grindelia camporum (Grindelia robusta, Nutt). Gum-plant. Herbaceous: lvs. larger and more rigid, broadly cordate-oblong, obtuse: achenes all, or some outer ones, 1-toothed or bordered at the summit.—Flowers throughout the Californian winter. Collected stock is offered.
Grindelia camporum (Grindelia robusta, Nutt). Gum-plant. Herbaceous: lvs. larger and more rigid, broadly cordate-oblong, obtuse: achenes all, or some outer ones, 1-toothed or bordered at the summit.—Flowers throughout the Californian winter. Collected stock is offered.
==Cultivation==
==Cultivation==
===Propagation===
===Propagation===
===Pests and diseases===
===Pests and diseases===
==Species==
==Varieties==
==Gallery==
==Gallery==
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<gallery>
Image:Upload.png| photo 1
Image:Upload.png| photo 1
Image:Upload.png| photo 2
Image:Upload.png| photo 2
==References==
==References==
<references/>
<!--- xxxxx *Flora: The Gardener's Bible, by Sean Hogan. Global Book Publishing, 2003. ISBN 0881925381 -->
<!--- xxxxx *Flora: The Gardener's Bible, by Sean Hogan. Global Book Publishing, 2003. ISBN 0881925381 -->
<!--- xxxxx *American Horticultural Society: A-Z Encyclopedia of Garden Plants, by Christopher Brickell, Judith D. Zuk. 1996. ISBN 0789419432 -->
<!--- xxxxx *American Horticultural Society: A-Z Encyclopedia of Garden Plants, by Christopher Brickell, Judith D. Zuk. 1996. ISBN 0789419432 -->
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