| ?Silversword | 
Mauna Loa silversword | | Scientific classification | | | | Species | | See text. Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. ...
Divisions Green algae Chlorophyta Charophyta Land plants (embryophytes) Non-vascular plants (bryophytes) Marchantiophyta - liverworts Anthocerotophyta - hornworts Bryophyta - mosses Vascular plants (tracheophytes) †Rhyniophyta - rhyniophytes †Zosterophyllophyta - zosterophylls Lycopodiophyta - clubmosses †Trimerophytophyta - trimerophytes Equisetophyta - horsetails Pteridophyta - true ferns Psilotophyta - whisk ferns Ophioglossophyta - adderstongues Seed plants (spermatophytes) †Pteridospermatophyta - seed ferns Pinophyta - conifers Cycadophyta - cycads Ginkgophyta...
Classes Magnoliopsida - Dicots Liliopsida - Monocots The flowering plants (also called angiosperms) are the dominant and most familiar group of land plants. ...
Magnoliopsida is the botanical name for a class: this name is formed by replacing the termination -aceae in the name Magnoliaceae by the termination -opsida (Art 16 of the ICBN). ...
Families Alseuosmiaceae Argophyllaceae Asteraceae - Daisies Calyceraceae Campanulaceae (incl. ...
Diversity About 900 genera and 13,000 species Type Genus Aster L. Subfamilies Barnadesioideae Cichorioideae Tribe Arctotidae Tribe Cardueae Tribe Eremothamneae Tribe Lactuceae Tribe Liabeae Tribe Mutisieae Tribe Tarchonantheae Tribe Vernonieae Asteroideae Tribe Anthemideae Tribe Astereae Tribe Calenduleae Tribe Eupatorieae Tribe Gnaphalieae Tribe Helenieae Tribe Heliantheae Tribe Inuleae Tribe Plucheae...
Species See text The Helianthus L. genus comprises 67 species and several subspecies in the Asteraceae family, all of which are native to North America. ...
| Argyroxiphium is a small genus of five species in the sunflower family (Asteraceae). Its members are known by the common name of silversword or greensword due to their long, narrow leaves and the silvery hairs on some species. It belongs to a larger radiation of over 50 species, including the physically different genera Dubautia and Wilkesia. This grouping is often referred to as the silversword alliance. Diversity About 900 genera and 13,000 species Type Genus Aster L. Subfamilies Barnadesioideae Cichorioideae Tribe Arctotidae Tribe Cardueae Tribe Eremothamneae Tribe Lactuceae Tribe Liabeae Tribe Mutisieae Tribe Tarchonantheae Tribe Vernonieae Asteroideae Tribe Anthemideae Tribe Astereae Tribe Calenduleae Tribe Eupatorieae Tribe Gnaphalieae Tribe Helenieae Tribe Heliantheae Tribe Inuleae Tribe Plucheae...
These perennials are endemic to Hawaii, occurring only on the islands of Maui and Hawaii in an extremely localized distribution. They are primarily found above 1500 m elevation in alpine deserts or bogs, indicating an adaptation to low-nutrient soils. The Kaʻū or Mauna Loa silversword (A. kauense) is the most adaptable: it can be found in rocky lava flows, bogs, and open forest. In biology and ecology endemic means exclusively native to a place or biota, in contrast to cosmopolitan or introduced. ...
This article is becoming very long. ...
Virgin boreal acid bogs at Browns Lake Bog, Ohio A bog is a wetland type that accumulates peat, a deposit of dead plant material. ...
They consist of rosette-forming epigeal shrubs or dwarf shrubs. They may consist of a single large rosette (Mauna Kea and Haleakalā silverswords), a short-branched rosette (Mauna Loa silversword), or spreading with runners (ʻEke silversword, greenswords). The flower heads consist of a ring of pistillate ray florets around 30 to 600 disk florets. The corolla varies in color from purplish to wine red or yellow, while the anthers are dark. A rosette will grow from 5-20 years before flowering, after which it dies. For those with a single rosette, this means the death of the plant. Because they require cross pollination, many plants must flower at the same time or they will fail to set seed. A significant population must exist for enough to flower each year for pollination to occur. A broom shrub in flower A shrub or bush is a horticultural rather than strictly botanical category of woody plant, distinguished from a tree by its multiple stems and lower height, usually less than 6 m tall. ...
For other uses, see Flower (disambiguation). ...
Corolla can be: A Latin-language term for crown The Toyota Corolla, a model of automobile manufactured by Toyota The corolla is one whorl of the perianth of a flower and composed of petals The town of Corolla, North Carolina This is a disambiguation page, a list of pages that...
Flower of the spider tree (Crateva religiosa) with its numerous conspicuous stamens The stamen is the male organ of a flower. ...
Cross pollination is a form of pollination in which pollen from one plant pollinates another. ...
Despite appearances, they are very closely related to the genus Dubautia. Although some Dubautia are radically different from silverswords, those found in wet forest and alpine desert clearly grade into the form of silverswords. Hybrids between Argyroxiphium sandwicense and Dubautia menziesii are common in Haleakalā Crater. Although the two species are quite distinct, the hybrids span the entire range of variation between them.
Silverswords and greenswords are highly sensitive to disturbance. Their shallow root systems are easily crushed in the boggy soil or loose volcanic cinders they grow in. The succulent leaves are eaten by goats in the dry summits, and pigs frequently disturb the fragile bog vegetation. All species are highly restricted in range, and even those that are protected are vulnerable to catastrophic events. The East Maui greensword (A. virescens) is apparently extinct, but in 1989 plants were discovered that appear to be hybrids between it and the Haleakalā silversword[1]. The Mauna Kea and Mauna Loa silverswords both have small populations, but are being cultivated and outplanted in protected areas. The largest population of Mauna Loa silverswords is in Kahuku, which was recently acquired by Hawaii Volcanoes National Park. For the animal, see goat. ...
Binomial name Sus scrofa Linnaeus, 1758 The domestic pig is usually given the scientific name Sus scrofa, though some authors call it , reserving for the wild boar. ...
Haleakala Silversword at Haleakala National Park, Maui. ...
Hawai‘i Volcanoes National Park, established in 1916, displays the results of 30 million years of volcanism, migration, and evolution—processes that thrust a bare land from the sea and clothed it with complex and unique ecosystems and a distinct human culture. ...
Species - Argyroxiphium caliginis: ʻEke silversword
- Argyroxiphium grayanum: greensword
- Argyroxiphium kauense : Mauna Loa silversword
- Argyroxiphium sandwicense : silversword
- Argyroxiphium sandwicense ssp. sandwicense : Mauna Kea silversword
- Argyroxiphium sandwicense ssp. macrocephalum : Haleakalā silversword
- Argyroxiphium virescens : East Maui greensword Conservation status: Extinct
Gallery Greensword Argyroxiphium grayanum (Greensword) Downloaded from : [[1]] Credits : US Geological Survey Photo by Forest & Kim Starr Image linked to Silversword File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ...
| | Silversword in Haleakalā Crater | Dubautia-silversword hybrid in Haleakalā Crater | Mauna Kea silversword Argyroxiphium sandwicense ssp. ...
| | Mauna Kea silversword flowering | Mauna Loa silversword habitat, Kahuku | Mauna Loa silversword, multiple rosettes | Mauna Loa silversword, single rosette |
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