(a) Restricted articles. The following are restricted articles:
(1) Bark chips or mulch3 located in a quarantined area and that are proven host plant taxa listed in paragraph (d) of this section.
3Bark chips or mulch of species listed in paragraph (d) of this section and that are marked with an asterisk (*) are not restricted articles.
(2) Forest stock located or grown in a quarantined area and that are proven host plant taxa or associated plant taxa listed in paragraph (d) or (e) of this section.
(3) Any other product or article that an inspector determines to present a risk of spreading Phytophthora ramorum, if an inspector notifies the person in possession of the product or article that it is a restricted article.
(b) Regulated articles. The following are regulated articles:
(1) Nursery stock, decorative trees without roots, unprocessed wood and wood products, and plant products, including firewood, logs, lumber,4 wreaths, garlands, and greenery of proven host plant taxa listed in paragraph (d) of this section.
4Firewood, logs, and lumber of species listed in paragraph (d) of this section and that are marked with an asterisk (*) are not regulated articles.
(2) Soil and growing media.
(3) Any other product or article that an inspector determines to present a risk of spreading Phytophthora ramorum if an inspector notifies the person in possession of the product or article that it is subject to the restrictions in the regulations.
(c) Associated articles. The following are associated articles: Nursery stock of associated plant taxa listed in paragraph (e) of this section.
(d) Proven host plant taxa. The following are proven hosts of Phytophthora ramorum:
*Acer macrophyllum Bigleaf maple
Acer pseudoplatanus Planetree maple
*Adiantum aleuticum Western maidenhair fern
*Adiantum jordanii California maidenhair fern
*Aesculus californica California buckeye
Aesculus hippocastanum horse chestnut
*Arbutus menziesii Madrone
*Arctostaphylos manzanita Manzanita
*Calluna vulgaris Scotch heather
*Camellia spp. Camellia—all species, hybrids and cultivars
*Castanea sativa Sweet chestnut
*Cinnamomum camphora Camphor tree
Fagus sylvatica European beech
*Frangula californica (≡Rhamnus californica) California coffeeberry
*Frangula purshiana (≡Rhamnus purshiana) Cascara
Fraxinus excelsior European ash
*Gaultheria procumbens, Eastern teaberry
*Griselinia littoralis Griselinia
*Hamamelis virginiana Witch hazel
*Heteromeles arbutifolia Toyon
*Kalmia spp. Kalmia—includes all species, hybrids, and cultivars
*Laurus nobilis Bay laurel
Lithocarpus densiflorus Tanoak
*Lonicera hispidula California honeysuckle
*Maianthemum racemosum (=Smilacina racemosa) False Solomon's seal
*Michelia doltsopa Michelia
*Parrotia persica Persian ironwood
*Photinia fraseri Red tip photinia
*Pieris spp. Pieris—includes all species, hybrids, and cultivars
*Pseudotsuga menziesii var. menziesii and all nursery-grown P. menziesii Douglas fir
Quercus agrifolia Coast live oak
Quercus cerris European turkey oak
Quercus chrysolepis Canyon live oak
Quercus falcata Southern red oak
*Quercus ilex Holm oak
Quercus kelloggii California black oak
Quercus parvula var. shrevei and all nursery grown Q. parvula Shreve's oak
*Rhododendron spp. Rhododendron (including azalea)—includes all species, hybrids, and cultivars
*Rosa gymnocarpa Wood rose
*Salix caprea Goat willow
*Sequoia sempervirens Coast redwood
*Syringa vulgaris Lilac
*Taxus baccata European yew
*Trientalis latifolia Western starflower
*Umbellularia californica California bay laurel, pepperwood, Oregon myrtle
*Vaccinium ovatum Evergreen huckleberry
*Viburnum spp. Viburnum-all species, hybrids, and cultivars
(e) Associated plant taxa. The following plant taxa are considered to be associated with Phytophthora ramorum:
Abies concolor White fir
Abies grandis Grand fir
Abies magnifica Red fir
Acer circinatum Vine maple
Acer davidii Striped bark maple
Acer laevigatum Evergreen maple
Arbutus unedo Strawberry tree
Arctostaphylos columbiana Manzanita
Arctostaphylos uva-ursi Kinnikinnick, bearberry
Ardisia japonica Ardisia
Calycanthus occidentalis Spicebush
Castanopsis orthacantha Castanopsis
Ceanothus thyrsiflorus Blueblossom
Cinnamomum camphora Camphor tree
Clintonia andrewsiana Andrew's clintonia bead lily
Cornus kousa × Cornus capitata Cornus Norman Haddon
Corylus cornuta California hazelnut
Distylium myricoides Myrtle-leafed distylium
Drimys winteri Winter's bark
Dryopteris arguta California wood fern
Eucalyptus haemastoma Scribbly gum
Euonymus kiautschovicus Spreading euonymus
Fraxinus latifolia Oregon ash
Gaultheria shallon Salal, Oregon wintergreen
Hamamelis mollis Chinese witch-hazel
Hamamelis × intermedia (H. mollis & H. japonica) Hybrid witchhazel
Ilex cornuta Buford holly, Chinese holly
Ilex purpurea Oriental holly
Illicium parviflorum Yellow anise
Larix kaempferi Japanese larch
Leucothoe axillaris Fetter-bush, dog hobble
Leucothoe fontanesiana Drooping leucothoe
Loropetalum chinense Lorapetalum
Magnolia denudata Lily tree
Magnolia grandiflora Southern magnolia
Magnolia stellata Star magnolia
Magnolia × loebneri Loebner magnolia
Magnolia × soulangeana Saucer magnolia
Mahonia nervosa Creeping Oregon grape
Manglietia insignis Red lotus tree
Michelia maudiae Michelia
Michelia wilsonii Michelia
Molinadendron sinaloense
Nerium oleander Oleander
Nothofagus obliqua Roble beech
Osmanthus decorus (≡Phillyrea decora; ≡P. vilmoriniana) Osmanthus
Osmanthus delavayi Delavay Osmanthus, Delavay tea olive
Osmanthus fragrans Sweet olive
Osmanthus heterophyllus Holly olive
Osmorhiza berteroi Sweet Cicely
Parakmeria lotungensis Eastern joy lotus tree
Pittosporum undulatum Victorian box
Prunus laurocerasus English laurel, cherry laurel
Prunus lusitanica Portuguese laurel cherry
Pyracantha koidzumii Formosa firethorn
Quercus acuta Japanese evergreen oak
Quercus petraea Sessile oak
Quercus rubra Northern red oak
Rosa (specific cultivars)
Royal Bonica (tagged: “MEImodac”)
Pink Meidiland (tagged: “MEIpoque”)
Pink Sevillana (tagged: “MEIgeroka”)
Rosa rugosa Rugosa rose
Rubus spectabilis Salmonberry
Schima wallichii Chinese guger tree
Taxus brevifolia Pacific yew
Taxus × media Yew
Torreya californica California nutmeg
Toxicodendron diversilobum Poison oak
Trachelospermum jasminoides Star jasmine, confederate jasmine
Vancouveria planipetala Redwood ivy
Veronica spicata Syn. Pseudolysimachion spicatum Spiked speedwell
[72 FR 8597, Feb. 27, 2007, as amended at 84 FR 16192, Apr. 18, 2019]
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